I get this error whenever I start a test server in Studio. My computer is running OS X Yosemite (10.10.3). This prevents me from testing my game in-studio.
REPRO:
Create a new place
Start a Test Server with a few players
Find this error in the output of the server
EDIT: This isn’t only happening in Test Server. It’s also happening on live game servers.
Yes, this is game-breaking for me. There is a sword that you equip when you first enter my game- loads fine in Play Solo, doesn’t load at all in test server or live server.