I found the folder but to be honest i have no clue which files/folders are actually related to my preferences and how to reset it to factory settings. The only information i saw online was related to the Profile Manager or something like that (Cubase Pro only).
Do i need to select every single file/folder from this location?
I regularly (and systematically when changing something in my preferences/Audio connections/Studio setup) make a backup of the whole preferences folder (for a Windows 10 user : C:\Users<username>\AppData\Roaming\Steinberg\Cubase 12_64) : it saved my a** several times, already.
So, and as @Martin.Jirsak already said, backup the whole folder and delete its content, at least the files in it, leaving the subfolders as they are (they are not usually involved when Cubase is misbehaving).
If you really want to know what files are involved in the Cubase settings, look here. Maybe you’ll be able to get rid of just few of them, the Defaults.xml one being often the main culprit when Cubase behavior goes wrong.
Then apply the same step: Make Cubase create a new set of preferences as described above. It is actually enough to rename the folder “Cubase 12_64” to e.g. “Cubase 12_64_old”. Do this whiile Cubase is NOT running.
Let us know if that prevents the freezes.
I did the backup on the preferences folder and deleted both the cubase artist 12 and elements 10.5 preferences folder and it seems to have fixed this issue. BUT then I imported my old preferences folder back again and the problems returned.
It seems that I will have to check what have I changed on my preferences in my old and bugged folder and then do it again in a clean folder.