[Bug] Terminal flicker on character input during typing

Bug Description
Each time I type a character, the blinks; it is like the terminal is scrolling or re-drawing over and over again.

Environment Info

• Platform: win32
• Terminal: pycharm
• Version: 2.0.24
• Feedback ID: ff0765be-dc1e-4053-8f16-8490101ce22c

Errors

[{"error":"AbortError: The operation was aborted\n    at abortChildProcess (node:child_process:750:27)\n    at AbortSignal.onAbortListener (node:child_process:820:7)\n    at [nodejs.internal.kHybridDispatch] (node:internal/event_target:827:20)\n    at AbortSignal.dispatchEvent (node:internal/event_target:762:26)\n    at runAbort (node:internal/abort_controller:486:10)\n    at abortSignal (node:internal/abort_controller:457:3)\n    at AbortController.abort (node:internal/abort_controller:505:5)\n    at Timeout._onTimeout (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:3720:5555)\n    at listOnTimeout (node:internal/timers:588:17)\n    at process.processTimers (node:internal/timers:523:7)","timestamp":"2025-10-21T15:22:36.781Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: csproj\n    at file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:1419:190\n    at Object.useMemo (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:73:25927)\n    at YtQ.useMemo (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:11:7725)\n    at Pw (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:1419:81)\n    at Fq (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:73:19414)\n    at mr (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:75:42814)\n    at b9 (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:75:38355)\n    at Vc (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:75:38283)\n    at wq (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:75:38137)\n    at GU (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:75:35216)","timestamp":"2025-10-21T15:25:16.568Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: csproj\n    at file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:1419:190\n    at Object.useMemo (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:73:25927)\n    at YtQ.useMemo (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:11:7725)\n    at Pw (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:1419:81)\n    at Fq (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:73:19414)\n    at mr (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:75:42814)\n    at b9 (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:75:38355)\n    at Vc (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:75:38283)\n    at wq (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:75:38137)\n    at GU (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:75:35216)","timestamp":"2025-10-21T15:25:16.647Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: template\n    at file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:1419:190\n    at Object.useMemo (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:73:25927)\n    at YtQ.useMemo (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:11:7725)\n    at Pw (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:1419:81)\n    at Fq (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:73:19414)\n    at mr (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:75:42814)\n    at b9 (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:75:38355)\n    at Vc (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:75:38283)\n    at wq (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:75:38137)\n    at GU (file:///C:/Users/alanc/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:75:35216)","timestamp":"2025-10-21T15:25:36.521Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: template\n    at fi

Note: Error logs were truncated.