Persistent UI Flickering on Command Line Paste Input

Bug Description
keeps flicking over and over when i past into the command line it does this for ages it's a massive bug and been doing it for months it locks up claude why is this not fixed

Environment Info

• Platform: darwin
• Terminal: iTerm.app
• Version: 1.0.62
• Feedback ID: e051fea2-b746-499e-a123-2dc2b3bf61b3

Errors

[{"error":"Error: Command failed: security find-generic-password -a $USER -w -s \"Claude Code\"\nsecurity: SecKeychainSearchCopyNext: The specified item could not be found in the keychain.\n\n    at genericNodeError (node:internal/errors:983:15)\n    at wrappedFn (node:internal/errors:537:14)\n    at checkExecSyncError (node:child_process:892:11)\n    at execSync (node:child_process:964:15)\n    at i7 (file:///Users/greg/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:865:5108)\n    at file:///Users/greg/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:777:48959\n    at Q (file:///Users/greg/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:674:14420)\n    at yJ (file:///Users/greg/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:777:46397)\n    at JH (file:///Users/greg/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:777:45264)\n    at Y9 (file:///Users/greg/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:777:51585)","timestamp":"2025-07-29T03:14:09.353Z"},{"error":"AxiosError: Request failed with status code 401\n    at _q (file:///Users/greg/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:676:1077)\n    at IncomingMessage.W0 (file:///Users/greg/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:677:9955)\n    at IncomingMessage.emit (node:events:519:35)\n    at IncomingMessage.emit (node:domain:489:12)\n    at endReadableNT (node:internal/streams/readable:1701:12)\n    at process.processTicksAndRejections (node:internal/process/task_queues:90:21)\n    at _21.request (file:///Users/greg/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:679:2088)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async Q48 (file:///Users/greg/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1539:467)\n    at async Promise.all (index 0)\n    at async file:///Users/greg/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1525:6379","timestamp":"2025-08-03T02:32:17.169Z"},{"error":"AxiosError: Request failed with status code 401\n    at _q (file:///Users/greg/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:676:1077)\n    at IncomingMessage.W0 (file:///Users/greg/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:677:9955)\n    at IncomingMessage.emit (node:events:519:35)\n    at IncomingMessage.emit (node:domain:489:12)\n    at endReadableNT (node:internal/streams/readable:1701:12)\n    at process.processTicksAndRejections (node:internal/process/task_queues:90:21)\n    at _21.request (file:///Users/greg/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:679:2088)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async Q48 (file:///Users/greg/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1539:467)\n    at async Promise.all (index 0)\n    at async file:///Users/greg/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1525:6379","timestamp":"2025-08-04T06:12:35.341Z"},{"error":"AxiosError: Request failed with status code 401\n    at _q (file:///Users/greg/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:676:1077)\n    at IncomingMessage.W0 (file:///Users/greg/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:677:9955)\n    at IncomingMessage.emit (node:events:519:35)\n    at IncomingMessage.emit (node:domain:489:12)\n    at endReadableNT (node:internal/streams/readable:1701:12)\n    at process.processTicksAndRejections (node:internal/process/task_queues:90:21)\n    at _21.request (file:///Users/greg/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:679:2088)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async Q48 (file:///Users/greg/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1539:467)\n    at async Promise.all (index 0)\n    at async file:///Users/greg/.claude/local/node_modules/@anthropic-ai/claude-code/cli.js:1525:6379","timestamp":"2025-08-05T00:31:21.800Z"}]