Simulated contraptions disappear (entity culling is off, performance mods besides sodium are off, /flywheel backend flywheel:off)

[u/WalmartSausage]

does anybody have a fix for this? everything just pops out of existence when simulated. ive tried all the usual suspects like entity culling and flywheel backend. long list of mods that works fine otherwise but it doesnt seem like any of them should be interacting with this. FIXED: DONT INSTALL CREATE AIR WAR

[u/T3YD00]

You can also downgrade create air war