RCE's are common enough. When you get one, it usually means that the player causing it is doing something they aut not be doing.
The quick fix is to:
1. Open Options while in the game.
2. Select PLAYERS from the list
3. Put the player you feel is causing the problem on Manual, or human.
4. Make the turn.
5. Watch what happens. If the player is doing something funcky, just correct it, and then make the turn. The RCE should not happen. If it does, post your save game file here so someone can take a look at it.
Also, are you using any modified files or added components or such? If so, list those as well.
If you want to view my collection of RCE's, just click
HERE