Dupes try to store several 100kg of Sandstone, but it gets dropped instead. Repeats endlessly and kills all progress. Seems to persist during save/reload.
On some further experimentation, this seems to actually be a delivery bug for some construction. The dupes pick the material up, but then drop it instead of delivering it.
Steps to Reproduce
Load attached save, watch the fun.
Status: Known Issue
We are aware of this issue and have it logged internally but either we do not have a fix ready yet or we are not planning on addressing the issue in the immediate future.