Cowork issues on macOS — page 3
Issues the maintainers labelled both platform:macos and area:cowork.
728 issues · 140 open · 588 resolved (81%) · first seen Jan 15, 2026
Is this getting better or worse?
This class of problem is converging. 226 new reports in the last 90 days vs 478 in the 90 before — -53%. The open backlog peaked at 195 in 2026-04 and sits at 140 today.
Derived by counting each matching issue from its creation date until it closed. First-party
computation over the anthropics/claude-code tracker — the trend is not published
anywhere upstream.
Which builds report this
269 of these reports name the Claude Code build they were running, spanning 94 releases. Heaviest reporters:
- Claude Code v2.1.111
- Claude Code v2.1.92
- Claude Code v2.1.81
- Claude Code v2.1.229
- Claude Code v2.1.177
- Claude Code v2.1.87
- Claude Code v2.1.202
- Claude Code v2.1.121
Report volume, not a defect count: an issue can mention a build without that build having caused the failure. Versions come from the version string in the bug-report template, matched against real published tags.
Do these get fixed?
Median time to close is 33 days across 588 closures. Of the 588 closures with a recorded reason, 19% were closed as completed and 477 as not-planned or duplicate. The most recent completed fix landed in 2026-08.
Workarounds reported by the community
220 of these issues post a workaround someone says worked. The highest-engagement ones:
- [BUG] Cowork Can't add private GitHub marketplace
- …ll org-internal plugin distribution through Cowork. The CLI workaround works but leaves teammates unable to install without terminal tooling.
Found in the thread of #28125 · still open - [FEATURE] Model switching for existing Cowork tasks within Projects
- …des instead of fearing them. Alternative Solutions The only workaround I have found is manually copying persona instructions and key decisions into a brand-new task. This loses the live conversation history and the per-t…
Found in the description of #49649 · still open - [BUG] Cowork (Not Claude Code) 1M context window unavailable on Max 5x — regression from March 20
- …ks has been broken since March 19 19:33 UTC. No client-side workaround exists. This requires a server-side fix.
Found in the thread of #37413 · still open - [BUG] Cowork: Global instructions silently revert to older version after saving
- …s who maintain detailed instruction sets. The only reliable workaround is to put all instructions in a file in the mounted folder, which bypasses entirely. Related issues: 27941, 20637, 24578, 29929, 30329, PR 29077 (unm…
Found in the description of #40175 · still open - [BUG] Cowork — "Additional allowed domains" allowlist non-functional
- …the sandbox proxy. Would appreciate any update on a fix or workaround short of enabling "All domains". --- Note: English is not my first language. This comment was written with the assistance of an AI(Claude.ai).
Found in the thread of #38984 · still open
Excerpts are quoted from the linked issue so you can judge relevance before opening it. Threads that only ask for a workaround, or report that there is none, are excluded. These are community suggestions, not official guidance from Anthropic — read the full thread before applying one.
Matching issues 201–300
Ranked by community engagement (reactions weighted over comments). Listing the top 300 of 728 matches; the statistics above cover all 728.
- MS365 connector auth broken: duplicate `prompt` parameter & random redirect URI port mismatch
- [BUG] Issues using Dispatch in cowork
- [BUG] Failed to start Claude's workspace version 2.1.92
- /ultraplan reuses stale remote session from a different project, mixing unrelated context
- Scheduled tasks never execute automatically — wakeScheduler feature flag unavailable
- [BUG] Cowork shows infinite 'Thinking...' spinner after switching back from Code mode
- Cowork: virtiofs mount fails when 'Documents' exists as file in virtual root
- [BUG] Help --> Troubleshooting --> Delete Cowork VM Sessions and Restart is deletes more than just sessions.
- [BUG] Cowork fails with Network status: NOT_CONNECTED even when API reachability: REACHABLE
- Cowork macOS: VirtioFS mount fails for all folders — "mkdir /mnt/.virtiofs-root/Gerald: operation not permitted"
- Claude in Chrome: account mismatch on cold Chrome start from Cowork (no retry on bridge connect)
- [BUG] Cowork MCP connectors lose auth after context compaction — not just server restarts"
- [BUG] Cowork crashes on startup: apply-seccomp Killed in VM sandbox (macOS ARM64)
- [BUG] Claude in Chrome file_upload fails in interactive Cowork session — rejects paths before reaching the page
- [BUG] Dispatch entry missing from Cowork sidebar in Claude Desktop (Windows) while visible on mobile
- [BUG] Cowork project groups disappeared after update (desktop + web), v1.22209.3
- [BUG] Cowork: folders attached in Project → Context are not mounted in new chat sessions
- [BUG] Desktop 1.20186: "Projects" (Cowork/epitaxy) redirects to Claude Code — new "Code" entitlement gate blocks the surface on Bedrock/3p
- [BUG] Dispatch stuck in infinite self-loop: system repeatedly injects "[Your previous response had no visible output]" after long context
- Cowork: third-party private-repo marketplaces permanently stale per-account — version label frozen at first-add value, re-add doesn't refresh, releases not picked up
- [BUG] Claude Cowork blocked by "Usage credits required for 1M context" — usage credits enabled, /model workaround non-functional, triggers at 7% session usage during compaction
- [BUG] Skill name conflict persists after full local cleanup — registry appears server-side
- [Bug] org-plugins skills unavailable until 10-minute periodic sync fires — race condition between SkillsPlugin sync and custom-3p:org-plugins install on every startup
- In-flight /btw side conversation silently lost on Code -> Cowork -> Code switch (data loss)
- [BUG] Claude Desktop 1.8089.1: marketplace migration race makes user-installed skills unreachable via slash-command
- /ultraplan deterministically fails: "seed bundle import: firestore: not found"
- [BUG] CLI output was not valid JSON. This may indicate an error during startup. Output: Invalid configuration in /etc/srt-settings/f64bc828-10de-4853-8c01-44a45d9c86b5.json:
- [BUG] owork Domain allowlist UI not honored by sandbox proxy
- [BUG] Cowork MCP client times out long-running tool calls despite server progress notifications
- [BUG] Cowork: "Claude Code process exited with code 127" on macOS Intel, App Store Claude Desktop, native CLI 2.1.139
- [BUG] Cowork "Download failed' on macOS Taho 26.4.1 M4
- [Bug] Project-local skill override not loaded by runtime
- [Bug] Cowork: ghost plugin from hidden marketplace can't be uninstalled, triggers OAuth popup on every launch
- MCPB-installed MCP servers not exposed on first turn of Cowork (works on second turn; works first-turn via claude_desktop_config.json)
- [Regression] Korean text broken in pptx/docx preview after recent update (macOS)
- [BUG] Dispatch session wedged after April 28 app update; server-side pairing state stuck
- [FEATURE] Cowork: deterministic VM filesystem mounts that survive Claude Desktop restart
- Custom MCP HTTP connector handshake stalls after notifications/initialized and GET /mcp — "Couldn't reach the MCP server"
- [BUG] Cowork scheduled tasks auto-mount telegram connector not configured by user, conflicts with Claude Code Telegram plugin
- [BUG]
- Cowork: gvisor network daemon stalls at AcceptBess on every VM boot, causing immediate keepalive failure and session termination
- [BUG] Claude Desktop 1.3036.0 — chat exits code 1 on every message, Projects list renders empty despite intact data
- [BUG] Cowork session transcripts and outputs are not durable, and the UX strongly implies they are — weeks of professional work lost
- [BUG] CoWork fails to start on macOS — checksum mismatch downloading claude-code-vm 2.1.111 (linux-arm64)
- [BUG] COWORK not working after recent update
- Cowork/Dispatch: backend drops env/session records, UI shows misleading 'Another device connected' / 'Desktop offline' / 'Session can't be created'
- [BUG] Cowork renders MCP App iframes but never delivers tool results (ontoolresult never fires)
- [BUG] Cowork session crashes immediately on macOS 26.3.1 — VM kernel panic "Attempted to kill the idle task!"
- [BUG] Claude Desktop Cowork hangs on launch and crashes on macOS 26.3.1 (Apple Silicon)
- [BUG] Cowork/Code tab: exit code 126 on VM spawn — missing com.apple.vm.networking entitlement (M5 Max, macOS)
- [BUG] coworkd_upstream_failed connection_refused - persistent across 2 days on Mac
- Cowork UI: messages render out-of-order / require scroll to find — regression on 1.569.0
- [BUG] request_cowork_directory opens blank folder picker instead of prompting for a specific named path
- Cowork: skills visible in Customize but not loaded in chat (context budget)
- [BUG] Dispatch stop replying. I sent an instruction, desktop agent reads it, but it completely ignores not and no response back
- [BUG] Claude CoWork showing Content Security Policy error after Mac OS update
- [BUG] Cowork: "CLI output was not valid JSON" when MCP tool result contains rich-text characters (runtime, not startup)
- [BUG] Claude in Chrome: Tab groups don't persist, connection drops during long tasks
- [BUG] Cowork VM creates new OAuth token on every session (token accumulation)
- [BUG] Embedded claude-code (Claude Desktop / Cowork) declares elicitation capability but never renders server-initiated elicitations — calls hang until tool timeout
- [BUG] Cowork VM fails to boot on Intel Mac after update to 1.32352.1 — guest kernel halts at ~1.7 s, host hangs at usernet: calling AcceptBess (works on 1.25927.0)
- Claude in Chrome extension never pairs with cloud Cowork session (all documented conditions met)
- [BUG] Cowork browser picker shows generic "Browser 1/2/3" instead of configured browser names
- [BUG] Cowork: update retroactively invalidated custom Cowork files root; "Change location" then copied 12.87GB incl. credentials and git repo to world-readable /Library/Application Support/Claude
- [BUG] Cowork "Add folder" rejects Google Drive Mirror root (~/My Drive) as a "protected location" — regression
- [BUG]
- [BUG] MCP server '...' is a local/stdio server. Plugins may only declare remote (http/sse/ws) or MCPB servers.
- [BUG] macOS: Cowork scheduled-tasks / local-agent-mode leak orphaned `claude` processes until app restart
- [BUG] Cowork/Code sessions hang on load after update to desktop 1.14271.0 (macOS 26.5.1)
- [BUG] Server is Busy & "API Error: Unable to connect to API (ECONNRESET)" errors for 48+ hours in cowork
- [BUG] Cowork installs stale cached plugin version; ignores all marketplace repo updates
- [BUG] Cowork in-session task list (Progress widget) does not repaint rows after TaskUpdate marks them completed
- [BUG] Custom mcpb is not picked up by Claude in cowork
- [BUG] Claude Code crashes in desktop app cowork window on Mac
- [BUG] Claude CoWork 1M context error on a Max plan
- [BUG] Claude Desktop crashes after ~7-8s on macOS 26 (Tahoe) — disk-writes resource limit exceeded by Code/Cowork VM init
- Claude desktop app closes unexpectedly on 8 GB M2 Mac — OOM due to 4 GB VM allocation
- [BUG] [Critical] Claude Desktop v1.8555.2 crashes on launch with V8 OOM on macOS Tahoe 26.4.1
- [BUG] v1.8555 Breaks Cowork Causing 403 Expired Token on Authentication
- [BUG] Cowork desktop session crashes/fails on resume; 13GB VM bundle + "Argument list too long" on resume spawn
- Cowork "Add marketplace" fails on marketplaces referencing private/internal plugin repos
- Remote Claude Code session (desktop app): GitHubPrManager spawns local `gh` with remote cwd → misleading ENOENT
- [BUG] Continuously crashing!
- [BUG] Cowork scheduled tasks missing from desktop sidebar — only subset rendered; macOS; tasks exist on disk and run correctly
- [BUG] Cowork funcionality dissapeared after updating to version versión 1.7196.3 (ca0c62)
- [BUG] version 1.7196.3, Mac, Cowork absent, résultat du grep vide
- [BUG] Claude Desktop 1.7196.0 — EXC_BREAKPOINT crash in Electron Framework on macOS Tahoe 26.3 (M1)
- [BUG] conector "Claude in Chrome"
- [BUG] Cowork Desktop (Mac): No way to unarchive an archived project
- [BUG] Can't use Claude Cowork via personal subscription on DEP enrolled Macs
- Cowork mode hangs in renderer JS loop after force-quit during agent task
- Claude Desktop Cowork freezes on session switch — synchronous XPC notification deadlock (macOS, v1.6608.2)
- [BUG] Claude Code process exited with code 127
- [BUG] Cowork live artifact: connector tool calls on page load trigger one-shot Allow/Deny prompt with no "Always allow," even when connector permission is set to "Always Allow"
- Cowork Session Disk Accumulation Errors
- Cowork desktop app: GitWorktreeManager runs `git add -A` on ancestor `.git` and leaks 8GB tmp_pack files every ~7 min until disk full
- [BUG] Virtiofs
- [Claude in Chrome] window.print() dialog freezes renderer; need silent "save page as PDF" tool
- [BUG] [Cowork] settings.json deny rules for WebFetch and WebSearch not enforced in Cowork desktop app
- [BUG] macOS Desktop App "Coworkd" VM Infinite Loop silently drains Pro Quota via orphaned subagents