Troubleshoot copy/paste not working to/from dom0 clipboard

Question here was how to trobleshoot.
4.1 RC3 tester here.

Using, testing, learning all day QubesOs in debian, except sys-net having fedora. Had closed lid 3 times today. Dont know at what point got also this problem.
From Qube to Qube can copy paste all ok, but not to dom0.
Oh, also now tested i cant get anything from dom0 to global clipboard.
So dom0 to/from isnt working, but others work.
All show notification that is pasted, copied ot/from global clipboard, but dom0 to/from global clipboard doesnt show messege and keeps last saved setting, since nothing from/to it is not copied. Now does this bug can be a feature- makes it even more secure.
While i dont turn off- what to execute to get to problem?
Im doing testing iwth dom0 terminal nano, thunar locationbar, Qpersonal firefox locationbar.

UPDATE- dom0 terminal tab auto completion also dont work anymore. Is it related or seperate problems?

UPDATE- From dom0 at one point started receiving again bytes to other machines.
Now because of this problem i started thinking about shortcuts of other apps and made one shortcut- to make screenshot autosave with notification. I think after this saving dom0 terminal started responding to ctrl+d to close terminal.
Maybe theese are 2 different problems, maybe combination of them makes dom0 copy/paste not work?
Dom0 still keeps not receiving from other machines pasted bytes.

UPDATE- dom0 terminal still open i have and in it ctrl+shirt+v does linux standart pasting command. I like it, but global past function maybe mixes up cause of shortcut repeating save as terminal. Its freash 4.1 rc3 install so affect everyone. I didnt change any shortcuts, just testing, playing, learning system until i also got this bug.

UPDATE- Also shortcut to close long time ago opened terminal in dom0 stopped working- crtl+d gives just d. Opening new terminal closes ctrl+d new temrinal, but old one isnt respoding.
Maybe button is stuck in dom0?

update- saving from Qpersonal url to global, pasting in dom0 gives old dom local, loading global to dom0 gives what was some time ago pasted from dom0 to global with shortcut or notification button.

update- i just got Dom0 clicking on notification icon to get a paste that was with shortcut made into global clipboard previous and into another vm, but in dom0 was saved last copy. Last one in dom0 local copy but previous local dom0 keyboard shortcut copy was finally accepted in global and available in other vm. So aaa in dom0 local 5 minutes ago with shortcut was not accepted, no notification, bbb in local PersonalVM local and global everywhere except in dom0, aaa to ccc changed in local dom0, clicked notification icon, notification came up, but didnt saved to global ccc but what was previously aaa. So i paste aaa in Personal vm, but dom0 has local ccc. I closed that terminal and couldt get this back, but for each terminal it remembered different function or shortcut execution?