Cubase 9, 10.05, and 11

Description: When I open my project on CUBASE I am having issues with my music treble. I have to touch the treble in the edit channel setting. I also have to go into the 4 HI to bring the treble down in order for the sound to be more clear. So what could I do to fix that issue please?

Remember I have CUBASE 9, 10.5 and 11.0

Hi and welcome to the forum,

Please write the proper title of your post.

Please, what do you mean by:

Could you try in the Cubase Safe Start Mode [Disable preferences], please?

Could you try to remove/rename all Cubase versions preferences folders, please? Cubase Preferences folders are:
Mac: ~/Library/Preferences/Cubase X
Win: %appData% Steinberg/Cubase X_64