why does my arm keep glitching like this

[Nike Phantom Academy II]

i play left handed option but every other time it glitches and does this weird thing where its on the right side but the wrist is snapped. :D idk how to explain it.

if someone can help me fix this issue i'd be glad
TY

[CARL]

play with your right hand

[noble]

...

[VT sini]

I'm not sure exactly what you're asking, otherwise I'd be happy to help. Do you mean the in-game model is glitching or you're arm is physically ''glitching'' in real life, and you're struggling with your posture?