I was using FTB Infinity Evolved 2.0.2 and just out of the blue one day I started crashing every time I try and load into a dimension. Other players on the server can load in the same dimension w/out a problem. I updated to 2.1.2 last night and still experience the same problem. Here is a copy of my crash log. http://pastebin.com/nYVb6bNH

Please let me know if you need anything else from me to assist with narrowing down what is causing the crashes.

That's weird... If other players can go to that dimension without problems then I don't see how this could be rftools related. On the other hand I have no clue what else could be wrong. Can you perhaps give me the full log?