Bug - Showcase section doesn't display work / project after 12 uploads.

I have uploaded 15 showcases on my profile, but I can only see 12. The showcase counter however says 15. When I go into the section where I can add new ones, the 3 I added are missing.

I have checked if it is due to website cache, but this happens both in Microsoft Edge an Firefox.

Edit: I managed to upload another one, I think the image with resolution 600 x 600 pixels made it disappear or something else. If a mod can clean up my excess showcase files, it would be fantastic