Prefabs with Joints broken in 2017.2

Unity Engine
1

Hi, we are working on moving from 5.5.4 to 2017.2. We have found a bug in 2017.2 that breaks how prefabs with joints are working.

We have prefabs with joints defined. We instansiate them using

Instantiate(Prefab, pos, rot);

But its moved to origo by the joint

2

OK so if I disable the game object in the prefab and set it to active right after init it works. So its clearly a bug in Unity 2017.2

3

If you haven’t done so yet, I’d recommend you to submit a repro case so the issue could be fixed asap.

4

Roger, wilco