How can I fix garbled text and icons in gnome-shell title bar, task bar, and prompts without reseting the session?

gnome-shell crashed at some point and, upon reloading, all the text and almost all icons in the title bar, task bar, menus, and prompts are garbled.

I have a process that's been running for a week now; if it restarts, there's no way to recover the progress and I would have to start from scratch. So, I'm looking for a way to resolve this without killing the processes I currently have running.

Thank you in advance!