[Bug] Plan Mode Inaccessible After Recent Upgrade

Bug Description
I'm unable to access "Plan" mode since the latest upgrade. How do I get back to it?

Environment Info

• Platform: linux
• Terminal: gnome-terminal
• Version: 2.0.8
• Feedback ID: 3d16610d-7d8e-4df5-99e8-56ec1c2e4740

Errors

[{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at XK (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:2195:1226)\n    at file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:2195:954\n    at Array.map (<anonymous>)\n    at fX (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:2195:945)\n    at Y2B (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:2195:13021)\n    at qC (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:34:19415)\n    at Wp (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:42814)\n    at G9 (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38355)\n    at zh (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38283)\n    at yC (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38137)","timestamp":"2025-10-05T01:50:26.918Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: example\n    at file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1097:391\n    at Object.useMemo (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:34:25928)\n    at S8Q.useMemo (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:10:7000)\n    at $$ (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1097:285)\n    at qC (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:34:19415)\n    at Wp (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:42814)\n    at G9 (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38355)\n    at zh (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38283)\n    at yC (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38137)\n    at PH (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:35216)","timestamp":"2025-10-05T02:02:05.362Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at XK (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:2195:1226)\n    at file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:2195:954\n    at Array.map (<anonymous>)\n    at fX (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:2195:945)\n    at Y2B (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:2195:13021)\n    at qC (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:34:19415)\n    at Wp (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:42814)\n    at G9 (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38355)\n    at zh (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38283)\n    at yC (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:38137)","timestamp":"2025-10-05T02:09:22.220Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at XK (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:2195:1226)\n    at file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:2195:954\n    at Array.map (<anonymous>)\n    at fX (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:2195:945)\n    at Y2B (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:2195:13021)\n    at qC (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:34:19415)\n    at Wp (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:36:42814)\n    at G9 (file:///home/matthew/.local/share/nvm/v22.17.1/lib/node_modules/@

Note: Error logs were truncated.