I have a physics simulation with roughly 1700 objects (water bottles). I have baked the simulation and tried to render it multiple times. Rendering a single frame works just fine. However, rendering everything results in these weird glitches. As a result of having turned on motion blur, I can tell that the bottles seem to return to their starting position.
My solution so far has been to rerender the glitched frames and continue, however it is very cumbersome and I would like to prevent this issue in the future. Has anyone experienced this issue?
As a side note, the letters you don't see falling down were simulated and then the position applied. Then the rigid-body simulation was removed so they aren't consuming resources.
Also, the bottles are instances of each other (copied with ALT D) and not new objects (no SHIFT D).
Here are some examples:
The first Image is the result of rendering an entire sequence, the second Image is the result of a single rendering.