Blender Parenting not working.

[HarambesFistVictim]

So when it comes to parents, I always went along the route of parenting the 2 objects together. And then to the bone nearest. Which never let me down or failed me. But since updating to 4.0. When I tried this method in 4.0 the object seems to move in the opposite way. Thus making my method, moot. Any idea to combat this issue?

I had a friend tell me to append the object I want to parent (It's modelled to be on the right wrist. But I need it to be on the left wrist.) And then use the mirror modifier, and edit someting. But to me that's a little to tedious, any idea?