Modpack version
Enigmatica 2: Expert - E2E -1.82a

Issue
Ender io not working. Machines are craftable and accept power but don't function, cables are invisable when placed. Have tested it on a server and in single player. I have tried upgrading to the latest version of ender io (5.2.66) but this version is incompatable with ender tweaker. I have downgraded to Ender IO - 5.2.61 and this works.

Do you have Optifine installed? It can cause some crazy issues.

Its a default Enigmatica 2: Expert - E2E -1.82a pack except for LagGoggles-1.12.2-5.8-132 and TickCentral-3.2 i added to spot lag.

Please remove those two mods and see if the issue persists :)

Sorry my mistake, completely forgot I installed LagGoggles-1.12.2-5.8-132 and TickCentral-3.2. I just tried it back in its default install states and it indeed works fine. I tried it with just TickCentral-3.2 and it fails looks like that’s the problem. Can I ask for some sort of lag detector be included in the the pack in the future?

I'd rather not add debugging mods to be honest, but TickProfiler and Spark are nice ones, and should be safe to add.