I keep losing logistic bots on my factory floor, I can try and test it more thoroughly but my current theory is if the platform is warped while a bot is outside the tiles it just gets deleted, though I can't replicate it in the editor with them being ether in flight or out of bounds so I don't know.

Ok I may have found what was doing it, I can't be sure as it's not replicating in editor, but it seems like another mod I had installed, repair turrets, where letting the bots recharge at them and when that happened during warp they get deleted