RH 2022.6.34 crashes with blank screen after project upgrade

For someone who runs into the same problem. 

After upgrading my project from 2020 to 2022, RH crashes when I try to open a topic. It first shows the topic correctly for 1/10th of a second and then blanks its entire GUI except the top menu.

I have traced the culprit to 2 faulty files: settings\ctaggroups.json and settings\statuslist.json. The status list was present in the project file and has now apparently moved to a json file. However, my status list contained brackets "Complete (No Translation)", which the converter probably choked on. The json file looked like

[
"Reviewed",
"Complete"
]o Translation)",
"Ready for Translation",
"Translated"
]

Editing the files into valid json helped and the GUI didn't disappear when opening the topic.

So if the same happens to you, have a look at those files.

Opened project looks fineOpening a topic blanks the screen