Thank you for your report. Since we have no output log attached, it's hard to say for sure what is causing the issue. If you do not see this in a single player game, I would wager that the issue is occuring on the P2P or Dedi game that you have joined. Could be a mod or could be some outdated files that didn't get updated.
If you do see this in single player, validate your files and try again. If the issue persists, please file another report with the log attached.
Thanks,
Dollie