Collapsing panels causes bugs

[SimonMeskens]

For the code panels on the left, if I drag the divider to basically "collapse" or minimize said panel (for example, I only want JS code and don't care about HTML/CSS, so I maximize the JS panel), some graphical glitches happen and if I fully minimize, the dividers stop being draggable. I had to go into my devtools and clear local and session storage to be able to use the tool again.

Example of one of the graphical bugs that might occur:

[greggman]

Thanks. Yea I noticed too. Looks like it only happens when the editor is set to monaco, not codemirror