What is happening is that the Ribbon Toolbar is appearing outside of Roblox Studio.
How to do it: Activate the option to collapse the Ribbon Toolbar and press ALT-TAB.
I don’t think there is a topic about this yet. At least I couldn’t find one (if there is, I apologize).
Sys Specs (if needed):
Processor AMD Ryzen: 5 3600 6-Core Processor 3.60 GHz
Installed RAM: 16.0 GB
System Type 64-bit operating system, x64-based processor
GPU: GeForce GT 1030
Monitor: LG FULL HD - 1920x1080 75Hz