Selector cannot move

Hello, I have run into the issue multiple times where the filament will creep up in slots that aren’t currently printing. This will cause the filament selector to get stuck. A lot of times it’s not by much and the blades cut the filament but more often than not the filament has creeped too far for the blade to cut and the selector is jammed. Do you have a solution for this, did I do something wrong? I have checked the idler cover is not screwed down too tight and causing the filament to advance prematurely… the only fix I’ve found is the re-spool some of the filament so it takes pressure off the the filament when it’s stored and stops the creep. Hopefully this makes sense.