Steps to replicate the issue (include links if applicable):

• Enter game with numerous concurrent users (during the demo, seemed like strangeness started at around 5)
• Walk quickly (can be in a straight line, but doesn't have to be) to other rooms

What happens?:

• When a player moves into a room, the player will face 3 doorways without rooms (instead of rooms, the player will see the outside sky). The player will not be able to proceed into a different room without significant (~15 seconds) delay.

What should have happened instead?:

• Players should be able to smoothly move from room to room without difficulty or pause.

Software version (on Special:Version page; skip for WMF-hosted wikis like Wikipedia):

Other information (browser name/version, screenshots, etc.):