im on version 1.20.1 paraglider version: "Paraglider-forge-20.1.3" and to redo what i did you just start glider than stop gliding mid air fall down on land and reopen the paraglider on land

As of 21.x the bug cannot be recreated. And since development of 20.x versions has stopped, I will close this issue. No further releases on 20.x versions are planned, unless a PR for an important fix is made, which will be included in a maintenance release.

Bump. Having this issue too, as well with older versions

Can confirm, I'm having the same issue.
Putting the glider away before touching the ground and pulling it back out after landing will cause your character the hold the glider above their head while walking around on land with no walking animation.

It seems to revert back to normal if you start another glide, and let yourself slowly fall to the ground instead of putting the glider away early.