Odd RCE
 

I recently had an odd RCE occur. I have patch 4 , TDM 1.61 and Tampa sond mod installed. I started a game with all the races in the mod pack hand picked. I add points to the EA, Narn and Toron to get them to 5000, as I was using the other races as 5000 point ones.
I was playing and had one of my ships destroyed by the EA. I went to check out their design under create/view enemy designs and got an RCE when I clicked view enemy designs. This froze up the game. I went back to a saved game and played 40 turns more and no problems. Checked enemy designs an got RCE.
Any ideas?