When building or digging

Not sure what happens on this, but using the Debug Dig command on these broken tiles removes the issue, so it's at least a temporary workaround till fixed.

The places I've seen this: a tile of water froze and entombed a ladder section. Dupes were on top of one tile when it was dug out, but did not drop down. Sand dropped down and buried some other items. I had one other tile in a save that kept crashing, but I hadn't noticed as it was first time I had encountered the problem.

edit: eh... the save file I attached was after I had debugged it. If I run across another problem, I'll try to remember to upload a save.

 

Edited March 19, 2017 by MagicManICT
up'd the wrong save file after I had debugged it

I am also experiencing this issue, nearly constantly. I have to save/exit 5-6 times for each new project I undertake.