This happens for me, but I also found someone else on the IRC who has this problem too. This bug occured in after updating roblox to the latest version. What happens? Test -> Server crashes.
Does it happen 100% of the time? Yes.
Steps to reproduce the bug? Yeah, I also found the cause. If you enter the 3D world with your mouse (in the Server window) the game crashes.
Where it happens? Normal studio. I don’t know if it’s on gametest too.
Level-specific? Nope, happens to all my places who could test on server before the last update.
Screenshots are not necessary. I get a window which says that roblox has to quit, after entering my mouse in the 3D world.
Special specs? Not necessary I think, as it happens for more people.
When the bug started happening? Since last update.
TEMPORARY FIX: Open a script screen, and never switch back to the 3D window