FSX:SE clean install on my side.
2 more FSX:SE with addons aircrafts and sceneries.
3 Players connected
"Server". Is a computer we have as standalone server with the best connection. Not flying, static on ground.
Player 1. Aircraft is VRS Superbug with custom Ala 12 Textures
Me. Robinson R22 default. No addon aircraft installed
When connection to the server, I get this error (sorry for capture. JoinFS got frozen)
We forgot the step to scan for models that's what was causing the error when trying to replace with the Cessna (or at least it looks like it's working now).
Maybe you should add a notice to make the Search models if it has not been done before?