Really odd problem. Space platform kept backing up periodically, but I couldn't find it till I saw it happen real time.

I have an asteroid quality upscaler loop. Pretty basic setup. A loop of belts around a bunch of crushers that the end of one loop side will sort and forward better quality items ...

It might not be a "bug" in the usual sense, but I can't think of any reason you would want this automatically placed so that items from one belt show up on another without explicitly placing an underground belt there. Certainly if I click specifically on that square with an underground belt, then I ...

When placing belts I often use the click and drag method which automatically places underground belts around obstacles. If a splitter is in place already and I drag a belt across it perpendicular to it's flow direction, the new belt automatically goes under the entire splitter. This is expected ...

I was trying to copy and paste a bulk inserter and a provider chest, but I cut it instead of copying it. There was a red wire from the chest to the inserter. The inserter had a condition applied to enable if the everything variable was less than 500. When I cut instead of copying it, I tried to undo ...