Thank you for contacting us on this issue. I will be happy to assist.
May I please ask you to follow the next steps when you get the 'Save As' window and the further error when saving a file:
- please open your Task Manager -> Performance;
- please find the 'Open Resource Monitor' command and open it;
- navigate to the 'Disk' tab and expand the Disk Activity section;
- you can use sorting for the File column and please find here the file that the IDE proposed you to "Save As" - this will help us to see which application, service, or process uses this file.
Please let me know about a result.
Also, can you please tell me if you store your TWS project locally or use any external storage for this, for example, OneDrive, etc.
If you use any external storage, I kindly ask you to save your project locally on your computer and check if the issue would be reproduced.
Looking forward to your response.