Iâm having the same issue. Never experienced this prior to 5.6. Incredibly frustrating, surprised no one else raised this problem sooner.
Issue seems to affect all imported assets that are not actively loaded.
For example, if I create a folder under Content called âMeshesâ and import an .fbx file, then close and re-open Unreal Editor, I can no longer see the Meshes folder in the Content Browser. If I manually browse to that location with Windows Explorer I can still see the Meshes folder in MyProject\Content\Meshes and the .uasset file in it. No folders or assets have been deleted, the Content Browser is just failing to show it for whatever reason.
Workaround: Drag and drop the fbx somewhere into the current default map so it loads at launch.
Additional:
If I click on the Gear icon on the right hand side of Content Browser, âAll Folderâ is already ticked.
If I right-click on the Content folder and select âValidate Assets in Folderâ I see no error messages and the issue persists.
If I right-click on the Content folder and select âUpdate Redirector Referrencesâ I see no error messages and the issue persists.
Iâve also been having this issue. Itâs incredibly frustrating. The only way I can keep assets visible in the Content Browser is having them loaded somehow in the default map.
Update: Launching the project through Epic Games Launcher instead of building it from the IDE fixed it for me. It seems there were some missing binaries causing the issue.
Edit: After the issue cropped up again, I just ended up migrating the files to a fresh project. Iâm still unsure what exactly caused this.
I just moved to 5.6.1 and I am now getting this specifically in the content folder of my plugins. Static mesh, skeletal mesh and animation assets all seem to be fine, but materials and niagara systems are very sporadic and only show sometimes when actively loaded.
Iâd also like to add that I have been encountering this issue after moving up from 5.4 to 5.6.1
It seems to affect both manually created folders and subfolders and also content added through fab or through epic games launcher with the âadd to projectâ functionality. Itâs also not consistent meaning sometimes everything works just fine.
Perhaps worth mentioning that this happens in a project without any source control enabled so it canât be attributed to source control shenanigans.
I did solve it by deleting binaries, intermediate and saved folders but I assume itâs a matter of time before this problem returns.
I have found if you open the project with the âUnreal Project Browserâ
it will mess up your project if it is not version 5.5.4.
I get this error when I try and open a newer project it will error with your project version was not created with UE 5.5.4 then it will exit or close.
If you then open the project with epic game launcher or click on the project folder it will not show all files or folders.
This fix worked for me
open file explorer and go to your project that is not showing all files and folders
right click on the âmyprojectname.uprojectâ
Click on âSwitch Unreal Engine Versionâ (Select one version higher than current Version if you do not see this you will need to download and install a newer engine version)
Note: You might be able to downgrade to lower version number also but I have not tried this.
Now click/double-click the âmyprojectname.uprojectâ wait for it to open completely. once loaded you can exit the project.
Note: Do not open the project with anything else you must open it with
âmyprojectname.uprojectâ
Now repeat the same steps above and change the version number back to the original.
Now you should be able to see all files and folders and can launch project with epic games launcher like normal.
Thank you for reading and i hope this helps someone