[Bug] Terminal tab animation missing after Claude CLI update

Bug Description
I just updated powershell, terminal and the claude cli. I use to see an animation in the tab when claude was working. Now it's gone. I still see an animation when something in powershell is running so I know it still works.

Environment Info

• Platform: win32
• Terminal: windows-terminal
• Version: 2.1.39
• Feedback ID: 7d3679cc-c67b-4d84-88b5-21822a9b53ad

Errors

[{"error":"Error: EPERM: operation not permitted, rename 'C:\\Users\\david\\ClaudeWebCLI\\web\\server\\dictation-formatter.ts.tmp.48960.1770935921583' -> 'C:\\Users\\david\\ClaudeWebCLI\\web\\server\\dictation-formatter.ts'\n    at Module.renameSync (node:fs:1019:11)\n    at file:///C:/Users/david/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:9:1397\n    at HX (file:///C:/Users/david/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:8:49854)\n    at Object.renameSync (file:///C:/Users/david/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:9:1361)\n    at qL (file:///C:/Users/david/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:6212:761)\n    at kt (file:///C:/Users/david/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:6208:4)\n    at Object.call (file:///C:/Users/david/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2214:1174)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async tdY (file:///C:/Users/david/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3554:14093)","timestamp":"2026-02-12T22:38:41.613Z"},{"error":"Error: EPERM: operation not permitted, rename 'C:\\Users\\david\\ClaudeWebCLI\\web\\server\\dictation-formatter.ts.tmp.48960.1770935936294' -> 'C:\\Users\\david\\ClaudeWebCLI\\web\\server\\dictation-formatter.ts'\n    at Module.renameSync (node:fs:1019:11)\n    at file:///C:/Users/david/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:9:1397\n    at HX (file:///C:/Users/david/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:8:49854)\n    at Object.renameSync (file:///C:/Users/david/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:9:1361)\n    at qL (file:///C:/Users/david/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:6212:761)\n    at kt (file:///C:/Users/david/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:6208:4)\n    at Object.call (file:///C:/Users/david/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2214:1174)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async tdY (file:///C:/Users/david/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3554:14093)","timestamp":"2026-02-12T22:38:56.313Z"}]