crash report

Please do not mark issues as private, unless your bug report is a security issue containing information that may compromise your server/client.

Please provide additional information, so we can better help with your problem:

• Was this a single player or multi-player/LAN game?

• Was the issue corrected after logging out and back in?

• Was the issue corrected after closing the program and restarting?

• Have you been able to reproduce this?
  You may also want to review the guidelines for writing helpful bug reports.

Did you do something special, can you reproduce that crash ?

Please force a crash while ingame by pressing F3 + C for 10 seconds and attach the resulting crash report.