[BUG] Claude Cowork on Windows 11 now freezes when trying to export report to PDF, to local file system.

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

when I receive a report in Claude Cowork ( local PC window11) , it used to download to file ( PDF ) no problems.
Now for some reason I have to export to file as PDF , and now Claude freezes and goes into a blank screen.
If I try to kill and restart Claude, it will come back up as frozen.
eventually after killing the process ( it shows up to 9 process under the one Claude job) multiple times, it eventually starts up correctly (no freeze with blank screen ) . The command-line tool in this workspace reports version 2.1.286.

Also no matter what I do, I can no longer use the top right hand corner download or share buttons. The windows close window overrides these icons just below it So I cant share the file ( to myself via Whats App which I know works on my machine). I have tried different screen resolutions and different sizing 100% to 200% which I can see get instantiated. But this icon clash issue does not change. Really poor GUI implementation.
HP Zbook G1A Ultra 1 year old. Every other program displays correctly - all except Claude CoWork report window when placed by Claude into the right hand side of the display.

What Should Happen?

Claude Cowork should download a docx or PDF of report when download requested.
Now it only allows exporting of PDF which locks up Claude

Error Messages/Logs

I get a blank screen , I reboot Claude and it reboots into the same frozen screen 90% of the time

Steps to Reproduce

Open Artifact (report with graphs)
Artifact opens correctly to the right hand half of the screen.
Share icon is locked out
Export ro PDF selected, change from LETTER to A4
Claude freezes - screen goes blank

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

fable 5.1 medium and high effort

Claude Code Version

version 2.1.286 Claude Cowork

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Cursor

Additional Information

<img width="1280" height="800" alt="Image" src="https://github.com/user-attachments/assets/51eca851-7656-42c6-ad91-5059e4510e8d" />

<img width="1280" height="798" alt="Image" src="https://github.com/user-attachments/assets/0a52b316-ad03-4695-b6ae-f9df28ada1f8" />

<img width="1280" height="800" alt="Image" src="https://github.com/user-attachments/assets/3bb583ea-c5e7-410c-8274-8ebbb3e29b5e" />

<img width="1280" height="800" alt="Image" src="https://github.com/user-attachments/assets/dfd52205-9189-4b2d-8bb8-22269abee416" />