A lot of mixtures placed in a vat can crash the game by tick freeze, and the mixtures dont even need to react with anithing to do so. one exaple was when i made nitric acid with 1mb of water and 600 mols of ammonia, everything went fine until i removed the solution from the vat, leaving only ~550 mols of ammonia, nitrogen and oxigen behind. every operation done with the vat would freeze the game, from adding water to opening the gas release valve to the atmosphere. the only thing that worked was to directly destroy the vat. mixing refinery gas with borax solution also froze the game. Any mixture can aparrently do so, even if there is no reaction taking place. Also i couldn´t remove 6mb isopropanol from the vat by any means, no liquid extraction method worked, the pumps just refused to pull the vat contents, even if the pipe was displaying the animation of doing so ( like in whe window in pipes or particles falling that didn´t give any effect to the player nor reduced the cotents.

to reproduce this, you can simply play around with the vat that soon any bug will show up, mainly the tick freeze. some other problems where the temperature shot to bellow liquid nitrogen after adding xylenes was mildly problematic, but not as much as a tick freeze. in older versions the vat contents could at least be removed directly from the vat with a test tube, but now there are no means to unfreeze the world.

destroy version 1 snapshot 16
other mods didn´t do anything to the issue

phosgenick