Hey,
I am currently playing on my server with the Exotic Industries modpack: https://mods.factorio.com/mod/exotic-industries-modpack
Besides these I added the following:
blueprint-sandboxes
Squeak Through
Rate Calculator
FNEI
Helmod
The problem I am having is that nothing is being simulated inside the designer lab. I can join/leave the lab just fine. Placing things isn't a problem too. Belts work fine. But the machines, inserters ect aren't doing anything.
Any idea why this could be happening and how to fix it? If you need more information I'll be glad to give them.