Version Info

• Minecraft: 1.16.4
• Entangled, 1.2.7

Steps to Reproduce
Entangle a Industrial Foregoing machine.
I was testing this mod in the modpack "All the mods 6". When I entangled an machine from Industrial Foregoing (A new one, can't remember the name sorry) the server crashed when I tried to right click the Entangler block and I can't get it to start since. I've attached the latest crashlog. As this was my very first try I can't say for sure if this happens with other blocks too.

Crash report (~/logs/latest.log)
latest.log

I did some further testing. After removing the mod both client and server side, I could start up again. I've added it in again afterwards and the entanglement with the machine was gone. (Dissolution Chamber btw)

I then tried to entangle a vanilla furnace but as soon as I entangled it with the binder the server crashed again. (latest log provided)
latest.log

Turns out I mapped one of the functions incorrectly when porting to 1.16.4. Because of that the dimension was saved incorrectly and the world crashes when it tries to load an entangled block.
I fixed it in version 1.2.8, sadly all entangled blocks previously saved in 1.16.4 will have to be relinked.

Thank you for reporting the issue!