Assets thumbnails in content browser are missing, missing material or low res

Hello i have a problem, i have a project with a lot of assets to build with, and when i open unreal i have this displaying on some assets, some are just missing on the thumbnail, some are missing materials and some a displayed low resolution.

The thing is, when i select the assets and right clic => Validate assets OR Load assets, they display correctly ( see image 2 ) does the same when i open them in the static mesh editor.
If i close unreal and restart it, i get back to image 1…

I can’t just reload and validate assets everytime i open unreal because it takes like half an hour !
Also, i tried a lots of things like cleaning cache, resaving assets etc and nothing works, its always like this.

Anyone have a solution for this ? Thanks !


Hello there @Pierrax! Let’s see what we can do here.

  • These types of issues tend to relate to the local setup, please make sure both your UE and OS have their latest updates.
  • As well, update your nVIDIA drivers, make sure you are picking the “Clean Installation” option, as well as going for the “Developer” drivers, as these have more stable settings for engine work.
  • If the issue persists after these upodates, please test using real time thumbnails.