Maybe it's just me and I haven't figured out how to fix this bug yet, but this mod ruined my current world at 22 hours in. The bots just hover over the belts to be upgraded, stopping the flow of all materials through. Now, you must just think to fix the belts and disable the mod, but it's not as simple as that. I disabled the mod and then entirely deleted it off of the computer, and its effects are still showing. The bots continue to try to upgrade belts even after I wiped the mod from my computer. Maybe I'm just dumb and haven't figured out how to do it yet, but I'm pretty sure this isn't supposed to happen.

It's really difficult to find bots ready to upgrade and do it in a performance-friendly manner. The latest version ought to perform better, but there are definitely improvements to be made.

If you want to fix the problem of ghosts tying up your bots, you can use a filtered deconstruction planner. Set the filter for entity-ghosts and then deconstruct the area to remove the upgrade requests.