Reproduces on both Staging and Production

How we can reproduce it using the example you attached
- please see attached video (Error_409onProduction.swf)

1 Create Project on the web site
2 Configure Multiplayer
3 Rename Project
4 Go back to the main Dashboard
Actual result: it shows "Multiplayer not Configured", but in fact it configured
5 Open Multiplayer tab
6 Try to set "Max players per room"
Actual result: you will get 409 error