A ton of old posts have been erased, what happened?

[S-ed]

Yes. But the topic you mentioned at least can be found by Search:

Uefy 2.0 (Pro Edition) make Blender's rigify rigs compatible with UE5, also has a FREE version

Uefy 2.0 (Pro Edition) Released! [Blender to UE5 with Rigify, make Epic Skeleton compatible characters [ Uefy 2.5 ]] It is a blender addon that makes rigify rigs suitable for use with game engines like Unreal Engine 5. Uefy 2 NOW supports Unreal Engine 5 mannequins. Uefy 2.0 (Pro Edition) is a free upgrade for customers who purchased any version of Uefy Script. Many years ago I watched the Epic ARTv1 Tool playlist on unreal’s youtube channel. I really wanted to use that but th…

The one with USQlite can’t be even found by Search.