Some edits are not being applied/saved

I have tried to edit a few things. Some edits work fine, some work partially, some don't work at all. Club colours, stadium details and player injuries can be edited without a problem, but changing kit colours doesn't work at all, and editing financial details only works partially (for example: changing budget reinvestment percentage works, but changing average ticket price doesn't). The main reason I got this tools was to edit kit colours, so it's very disappointing that that is one of the few things that doesn't work. I have tried a few things to resolve the issue: I unticked 'Allow Licensed Kits', I changed the 'year' attribute on all the kits to the current year in the game, I removed my custom designed kits from the graphics folder and reloaded the skin to put the default kits back in the game. Obviously none of them worked. What could be causing this issue?