Those errors occur usually right after a map change with our current 'released' version.
We have beta code in testing right now that works around the issue causing that.
Megiddo, do we have plans to release the latest anytime soon? I know we haven't made too many changes, but, that one in particular is huge in my opinion.
I've not seen too many complaints/reports from the SVN users (though, I've not checked mantis in weeks)