My Microbe Musher suddenly turned into a black hole, sucking up all my water and occupying all my Duplicants. The status says "Awaiting Material Delivery" (twice) even though no fabrications are queued (none have been queued for the last five minutes while I was watching the Duplicants go crazy). I can still build stuff when setting a high priority but all my water purifiers ran out of sand and nobody is getting to those as the Microbe Musher seems to be prioritized. I created a named save file. If that would help you find the problem. BUT: the bug does not persist after reload.