Hello! I have seen this asked several times, and none of the solutions have helped me so far.
I am having an interesting experience where when I go to add the asset from my UE Library to a new game, the folders in the content browser are empty… But when I look at the actual files on my drive using File Explorer, they are there. Why are they not showing? This is occurring on versions 4.26 and 5.0. To give you an idea of what I am talking about, here is a little video: Lockpicking Problem - YouTube
I noticed that you are still using 5.0 Early Access. Updating to 5.0.2 should resolve this.
You’re seeing this error because assets created with a later version of the engine cannot be opened in an earlier version. So for example those “Lockpick System” assets were created in 5.0 (Release) and cannot be opened with 5.0 (EA/Prerelease)
On thing you could do that solve file related issues to sometimes is right-click in the folder in the content browser and select “Fix up redirectors in folders”.
I’m having the same issue - fixing up redirectors didn’t help, nor did closing and re-opening the content browser. Currently in 5.4.2 on Windows, though the same problem (with the same asset) is happening on Linux too.
However, references to the invisible asset in other blueprint classes work just fine.
I had the same issue where the folder with my assets did not show. i tried saving and exiting unreal engine then re-opening my project and the folder and all the content within it appeared
(i wish to have .py file visible in content browser and maybe even execute them from there, but currently despite enabling content browser integration and developper mode, i can neither see them or import them).
OK, so this may or may not relate. I have noticed this seems to happen occasionally on folders at the content root folder and new assets within (even if moved after with explorer), especially when a cpp project is run from the Launcher instead of from VS. I did several things to resolve, but I am pretty sure it comes down to 2 (maybe one of) cache files:
\Intermediate\CachedAssetRegistry_0.bin
\Intermediate\CachedAssetRegistryDiscovery.bin
So, close everything - make sure no .Net Worker threads are running in Task Manager (they seem to get left behind sometimes) - or better yet, reboot.
Delete these 2 files and run - I rebuilt the project source, but I think running will rebuild them. Then low and behold the folders reappeared.
Also worth manually deleting any placeholder in folders that have file or subfolders in them while you’re at it.
I am guessing when cpp projects are run using just the game, whatever writes the cache either doesn’t or cannot locate them and fails to (?).