I was installing Cercube 5 on my non-jailbroken iPhone 11 (iOS 14.5) with Sideloadly (Windows x64) [Only setting changed was to change the app name to 'YouTube']
Everything went well, it went through everything perfectly, and I got the "Done" prompt. The profile was there, so I clicked trust, but when I looked for the app itself, I couldn't find it anywhere.
I went through my home screen, I went through the app library, I searched it, but it wasn't anywhere.
I even scrolled down in my settings to see if it was there with the rest of my apps and it was.