Hey everyone, I'm trying to recreate a tutorial made by Steven Knipping, Rigids VI,
with my own scene. I have chains that are supposed to break. I import the new broken pieces after a specific frame. But these broken pieces freeze in mid-air. They have velocity, they're active and they're not sleeping. I already tried on odforce to get help but to no avail. Anyone here able to help me out? It'd be much appreciated

Here is the save file simplified a bit more to highlight the issue

Are these attachments working?