Broken Prerelease Build

If you downloaded the prerelease build within the last 24h, please redownload.  

I had deployed some bugfixes for last week's prerelease yesterday but for some reason I have yet to figure out a major data corruption occurred in the file tracking the connection between maps and their IDs. Which can make you teleport to weird places. I have redeployed the prerelease where this corruption is fixed.