I didn't want to create a new issue for this but I also didn't want to comment on a closed issue. I've been doing some testing and when I close and open my world normally I would have resources rolling in from the massive RFTools Quarry that I have in an RFTools dimension, but I noticed it had stopped. It seems when I load the chunk loader and then go back to the overworld everything is fine. Could this be an issue with RFTools Dimensions? I haven't tested chunk loaders in the nether yet.

Uh... Weird. In my single player they're loading in the nether just fine, it should be loading all other dimensions just the same. Have you re-placed the chunk loader since the most recent update?

That seemed to be the issue. My fault!

:D glad it wasn't my fault!