I have same issue, can’t rig my metahuman, stuck on 75% Auto-Rigging Face Mesh and it ends up with an Error: Auto-Rigging of Face failed with code ‘Server Error’, nothing helped. I tried vpn (different servers), tried to sign out everywhere, tried to modify dns to 8.8.8.8, make Google Chrome default browser.
UE 5.6.1 all metahuman’s plugins are turned on. My scepc: rtx 4070ti, i5 13600kf, ssd kc3000 1tb, 64gb ddr4. My internet connection speed is around 100 mbs
This is so frustrating to spend the whole day on something like this when you’re trying to learn UE, you just get stuck.
The solution worked for me is: Fully close Epic Games Launcher (even from taskbar, also check the task manager if it is still running in the background). Press Win+R and %localappdata% press enter, navigate to Epic Games Launcher → Saved and look for folders named webcache (webcache_4147, webcache_4430 etc). And restart your PC, launch Epic Games again. (webcache will be created automatically without corrupted files) Now try to Download textures again (4k first just in case).
The solution worked for me is: Fully close Epic Games Launcher (even from taskbar, also check the task manager if it is still running in the background). Press Win+R and %localappdata% press enter, navigate to Epic Games Launcher → Saved and look for folders named webcache (webcache_4147, webcache_4430 etc). And restart your PC, launch Epic Games again. (webcache will be created automatically without corrupted files) Now try to Download textures again (4k first just in case)