Portal room (teleport) displays wrong intermediate room

[xopr]

Bug description
When walking into a portal to another room, an intermediate room (green grass) is displayed between source and target room.

Steps to reproduce

1. Go to the ACKspace room
2. Walk up into the right elevator

Current result

1. participant will "teleport" into a "grass" room before going to the actual target room (ACKspace_outside)

Expected result

1. participant should show black/loading screen before jumping into correct room

Screenshots
If applicable, add screenshots to help explain your problem.

Environment:

• application version (and commit hash if on test)
• occurs on desktop
• occurs on mobile
• Browser [e.g. chrome, safari]
• occurs on Production
• occurs on Staging
• occurs on Test (commit hash: v0.9.0 (3205fcb))

Notes, context or workaround
Add any other context about the problem here.