***Disclaimer Warning on the UE5 version!***
Okay so I've noticed that the UE5 version still wrecked my projects.. all of them. I can't open any of them anymore in UE4 because it says "failed to load: has been loaded in a newer version".
Apparently, if you start the UE5 version (from its very own folder, keeping the UE4 version separate), the UE5 game scans all your project files and updates them so that you can't open them up anymore in the UE4 version. And the ones that I can open up through the autosaves have the camera bug where you can't scroll to the left.
So be beware of that before you try out the new build, if you have projects from the UE4 version that you like. I don't know how the game scans the files and why the UE5 version automatically - being in its own folder - scanned the UE4 projects too. That's something I wouldn't have expected since the presets and saves are separate per folder / game build and not in a shared place like "
my documents".
If you want to try out the UE5 version I suggest you to backup your UE4 game on a completely different drive, as far away as possible, but I can't promise that this won't cause the same issues since I don't know how it exactly scans for the projects.
Edit:
Apparently older auto-saves work without the camera bug, but any auto-save you open up to get your crushed project files back while the UE5 version is arround (yes, even if you do that in the UE4 version not touching UE5) will instantly be corrupted with the same bugs, so don't try to re-save your projects while the UE5 being installed, otherwise you'll lose more and more progress. Luckily I did that only to the latest one, so the 5 minute older one is still in tact.
But all other projects from the past months are literally gone for now.