The Mobile Factory mod has several buildings with a craft speed of 0 that do their work via scripts. When selecting one of those buildings with Actual Craft Time active, the game crashes with the error:

Error while running event Actual_Craft_Time::on_gui_opened (ID 84)
Actual_Craft_Time/control.lua:7: invalid format (width or precision too long)
stack traceback:
[C]: in function 'format'
Actual_Craft_Time/control.lua:7: in function 'truncateNumber'
Actual_Craft_Time/control.lua:683: in function <Actual_Craft_Time/control.lua:648>

Can you tell me what version of MF this occurs in? I get an error with MF 0.0.188 so I can't test it. Also specify one or more of the buildings that cause the error.

Still happening in the latest version of Mobile Factory as of this writing (which happens to be 0.0.191). One such building is the "Ore Cleaner".

Still happening in the latest version of Mobile Factory as of this writing (which happens to be 0.0.191). One such building is the "Ore Cleaner".

ah ok, got a divide by zero case. I'll have to think about a solution. As of now consider Mobile Factory to be incompatible with ACT