I'm not sure what triggered it, and I'm also not sure if it had any effects, but the following message popped up in my chat after updating to the newest version (a couple minutes into the game, using a fair amount of bots to build stuff, but not so many for logistics).

BetterBots/control.lua:342:bad argument #1 to 'pairs' (table expected, got nil)

Insofar as I can tell, the bots and robo ports are still pretty much doing their thing. I am placing modded objects, and I do have a single roboport that's unpowered (solar grid expansion water issues), but I can't think of any other edge cases that might be happening.

Update: I can reproduce it by placing blueprints containing only tiles. Blueprints containing tiles and other stuff do not seem to cause it.

Thanks. I've been able to reproduce your bug and found another one in the process. It was related, as you correctly found out, to blueprints containing 0 entities (only tiles).

Since those blueprints contained no roboports by definition, the bug had no real effect on your game.

I'll have it fixed in the next update

Thanks