That is strange. Were you able to submit a bug report when this occurred? Providing these helps our QA Team with investigations on bugs and glitches.
To submit a report:
1. Right-click the screen while the game window is open.
2. Select the option "Submit this problem to WGT" on the menu displayed.
3. Describe the issue you are experiencing in as much detail as possible.
I'm sorry that this happened to you. Hopefully you will not experience something like this in the future.
-WGTyphoon