Print (Ctrl+P) then entire application window grayed out, cannot print.

[jennandy75]

My print function was working fine. Hitting Ctrl+P got me the print dialog box, and job went through. Now hitting Ctrl+P got me the entire application window grayed out; cannot print. I can only hit Esc to return to application; which is working fine. Calc, Writer first encountered this problem, and now Impress, Draw catched on.
Print preview works fine. My printer USB cable connection, driver, are tested, is working fine through Other Softwares.

Background. Printer setting/setup: Type CUPS:Samsung_M2070_Series. Format - Page - checked. Format - PrintRanges -cleared. Printer queue shows clear. I am on Ubuntu KDE, Kubuntu 20.04.
The only thing I can think of, prior to this trouble, was that I was adjusting landscape/portrait, page margins.
I googled this problem for days, no avail. Please help, very much appreciated.

[EarnestAl]

Does printing work in Safe Mode? In LibreOffice click Help > Restart in Safe Mode. Your user profile might have been corrupted.

Save a copy of your user folder somewhere else in case you need to copy back some of your user data if you need to do a factory reset

[jennandy75]

Yes, your suggestion, "Help > Restart in Safe Mode, solved my problem. Thank you!!! I chose ResetToFactory ResetEntireUserProfile. Now that my print dialog has been restored. Thank you so, so much.

[jennandy75]

Help > Restart in Safe Mode. Then ResetToFactory options ResetEntireUserProfile restores my printing functionality. Yes!!!