Hello again,

when you hit q on a building you will automatically get a blueprint of this structure to place down. If there is no blueprint of said structure in your inventory it will place one in there.

If your inventory is full and you do q on a building you don't already have, the game will crash.

Thanks! I'll look into this. If you can easily reproduce it and give me the error message you'll save me some time solving it.

Should be easy to reproduce. I'll post you the stacktrace in a bit.

level::on_player_pipette (ID 92)
LuaItemStack API call when LuaItemStack was invalid
stack traceback:
[]...Data/Roaming/Factorio/Temp/Currently-playing/Control.lua:498:in function
<...Data/Roaming/Factorio/temp/currently-playing/control.lua:496>

Cheers. I have a bit busy schedule, but I'll see if I can get this fixed within som days.

Was an easy fix, uploading 2.1.1 now.

that is quick, cheers man!