Metahuman Arms and Hands bad deformations by default in 5.6 and 5.7

I’ve noticed that all MetaHumans exported from the MetaHuman Character Creator have incorrect skin deformations, especially on the fingers. Do you know why this happens?

Even the default presets in Creator show these issues, and custom body types seem to make the problem even worse.

I have had a similar issue, and posted about it in the link below. The deformations of the hands in the MetaHuman Creator plugin within Unreal Engine suck compared to the MetaHumans created in the online creator. I personally don’t like the in engine plugin, and don’t understand why they are getting rid of the online creator when the plugin is noticeably worse.

Plugin-created MetaHumans (UE 5.8) have different rest pose than web-created MetaHumans, causing weaker RBF corrective deformation