Strange Roblox Error

[metatablecatmaid (metatablecat)]

It isn’t the same issue but Roblox have known about these CoreScript errors for a while

Errors in console: BlackFrame is not a valid member of ScreenGui

Got this error when loading a local server: 16:50:19.088 - BlackFrame is not a valid member of ScreenGui 16:50:19.088 - Script 'LoadingScript', Line 370 16:50:19.088 - Stack End 16:50:19.089 - Disconnected event because of exception Anyone else able to replicate?