This morning I tried opening Roblox Studio as usual, but i’m unable to use it. Each time I try to open it, be it from the Creator hub with the “Edit in Studio” button or by manually opening the application, I keep getting the error “No local Fast Flags were loaded. ClientAppSettings.json may be incorrectly formatted or corrupted”. Note that i’ve never used fflags on Studio (I don’t even know how to do it). Once Studio opens, it results in a blank window in which I cannot do anything besides change the settings.
I’ve tried resetting all settings (didn’t work) and uninstalling Roblox Studio (the first it’s opened it loads correctly, after restarting it the issue occurs again)
Expected behavior
Roblox Studio should open like usual and I should be able to navigate through it and edit my experiences/places.
After a hour of messing around and trying to find a solution, I managed to stop this from happening by disabling the “Auto-Enable Upcoming Features” option in the Beta Features menu. After disabling it and restarting Studio, the start page loaded just fine and I could get into my places. FYI re-enabling the option makes the issue occur again
@vopwn55 If you’re able to get into Studio’s start page try doing this as well ^
This error is caused by a badly-formed ClientAppSettings.json file, this is usually stored in two locations
%LOCALAPPDATA%/Roblox/ClientSettings - not usually here in recent installs
%LOCALAPPDATA%/Roblox/Versions/{StudioHash}/ClientSettings - if there is a ClientAppSettings.json file under here, either just delete it or check the formatting of the JSON
This is used to define flag overrides but if you dont know what you’re doing, its safer to just delete the file and be done with it
That being said, Studio is still loading the web flags, so it should be safe to just ignore this if it does crop up again, and you’re not intending to override flags.
