After looking at the microprofiler, I had moved over to a different window to check something, and when I came back all of the text in the microprofiler was corrupted.
Closing & re-opening didn’t fix these issues, only restarting studio
I got this to happen to me when I:
1: press play
2: open the microprofiler using the keybind
3: activate a flame graph on Script time - PlayServer
4: press the red stop button
I have to close and reopen my window to fix it