Windows 7 Pro SP1
Graphics card: GTX-970
Blender Version
2.80, 2.81, 2.82
Animation renders randomly unexpected locations.
Following my bug report T71054 (about wrong rotations), I got lots of location problems. Parented objects randomly suddenly jump out of their expected location (not following their parent).
Re-rendering faulty single images is "more" accurate, but not always.
I cannot join a blend, too heavy and too complicated to simplify. But it prevents me to have a normal workflow, if I have to check every rendered image in order to know if I have to render it again.
Well, sorry that I cannot join a blend, but I wanted you to know about that, I guess I am not the only one. The bug seems to lie in the render animating transmission of locations.