Upon Crashing, Saved custom workspace is not restored when it reopens. The 'saved' workspaces still physically exist, although you must remember to go to window->workspace, then choose your saved space.

Hi ​@avos_d could you share your workflow and what steps you were doing when this happened?  Also, please share your sysinfo here:

Go to the top menu, Help/System information

Copy all the text and paste here.

Thanks,

Cory - Photoshop Product Manager