Weird performances problems in UE4 content browser


I am using a UE4 4.18 fork made by NVidia that replaces APEX by BLAST (

My fork is installed on my main SSHD, and my project files are stored on my storage HDD.

My problem is that when I want to move an asset in an other folder, to delete an asset/folder, etc… My engine is freezing and my CPU and my SSHD are going up to 100% use (not my HDD where the project’s files are stored!)…
If I wait, after longs minutes or hours (depending on how many files I try to manage), my CPU and SSHD are back to normal, but the engine is still frozen…
My only choice is to kill the process and relaunch the project…

Is this a bug?
Should I delete/manage folders and assets in the Windows explorer instead of inside the editor?

Thanks for your help!

E. Damien


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