in 1.40 - It randomly restarts servers at random unknown points, i don't know what in the mod causes it, but as soon i removed it - my server started running fine and dandy.

There's a Pixark Modding Discord channel that may be able to help. From there the consensus seems to be all mods are pretty much borked until the Dev Kit update comes out.

B+ fancy stone ceilings (possibly all materials?) do not snap to the side of other ceilings and will not place on top of doors/windows. How can you make a ceiling if the whole underside has to be supported?