I've been getting this error a lot lately:

Error while running the event handler: __robotarmy__/robolib/Squad.lua:105: LuaUnitGroup doesn't contain key surface.

Any ideas why that is? I can't really say what I've done to cause this, but in one of my save games, it just seems to constantly crop up.

Not sure if this is the forum for crash reports.

I'm playing with 0.13.11, and it's working beautifully. However, I recently installed Factorissimo, and the game is starting to crash. Especially If I'm using blueprints.

The crash log is here:
(if this is the wrong forum, please accept my apologies ...

I like this mod for its ability to build much tighter factories. However, I did notice that, when deconstructing the side inserter, it goes back into your inventory as a standard inserter of the same type. (So if you deconstruct a left-fast inserter, it will go back into your inventory as a regular ...