VMware Workstation 25H2 and Win11 25H2 has a problem where you can only copy files from guest to host once.
Following the advice in Post 8 from here VMware Workstation 25H2 - Crash when dragging and dropping a file from the host to the guest | VMware Workstation
If you power off the VM, go to VM > Settings > Hardware > Processors > Virtualization Engine and uncheck “Virtualize Intel VT-x EPT or AMD-V/RVI”, does that help?
This works, the copy and paste will work as expected like previous versions of Workstation.
Edit.
Spoke too soon, its now stopped working again so now switching off all the Windows Defender security settings one by one to see if that makes a difference as there nothing else to trying.