Title and screen describe the issue.

Technically the same issue would happen with any other mod that turns body parts invisible, so I think fixing it from Curio would be the best way.

The hands are turned invisible, not much I can do here I think. Either play without vanilla hands enabled, or try opening an issue at Curio to not ignore invisible body parts.

Got you will open issue on their github and redirect it to there as example.

Check on Curio's dev response, if there is nothing that can be done, better to close this one I guess.

Like proposed on the issue, this should be resolved by the mod adding that curio, not by Curios or FPM.