cannot save Premier in Windows 11

Just downloaded Premier from Costco on Windows11.  Up and running.  Have been using Premier for at least 20 years.   Imported last years data ... no problem.  Tried to close and save program and got message "File not found Check the file name and try again".  Target location correct.  Have no idea as to what is happening.  The file extension by defalt says *tax2025.  

Module WinPerRelease    Version 025.000.0203

I am wondering if there is some weird interaction with the online version which I declined.