User presets multiplied in After Effects

Impossible to say much without actual system info, but from the screenshot alone it's fair to say that AE is likely running in quirks mode due to your system appearing to not meeet the minimum system requirements for screen resolution and by extension thus potentially also not having the best GPU acceleration. From plain drawing issues with the UI to cache errors to somehow the system actually having duplicated the presets that could be anything. Start by checking the actual preset folders, update your graphics driver, check the hardware acceleration settings, flush the caches. Anything beyond that will require much more precise details.

Mylenium

Let me move this to the AfterEffects forum for you, which is the appropriate forum for your question.

The Using the Community forum is for help in using the Adobe Support Community forums, not for help with specific programs. Product questions should be posted in the associated product community.