Universal Remote 0.8.1
MC 1.12.1
Forge 2459

So this took me 8 hours to track down :P Unfortunately I can't provide any logs, but with Universal Remote installed whenever I go to a modded dimension (like the Aroma1997 Mining World) the client is hung on the "Loading Terrain" screen. You have to restart the client and login again, then you are in the dimension you wanted to go. As I was getting surrounding sounds after teleporting, it seems like everything seems to work except removing the the loading screen. Happens with every cross dimensional teleporting, so Portals or Charged Porter from RFTools or commands.

I'm sorry to hear you had to spend 8 hours debugging that.

Still.. that's strange. I specifically tested that earlier.
Let me see if I can reproduce it.
What mod pack are you using?

= EDIT =

Confirmed.
It must be been added in the last few patches since I last tested that.

Damn it all. I had somehow moronically set doneLoadingTerrain to true instead of false inside my NetHandlerPlayClient override.

Fixed in 0.8.3

Huge fan of Age of Engineering btw. :)

Awesome, thanks.