[2022] Completing a study loses operator and study progress

If I complete either Specialised Reveal or Grand Reveal for the Lurker Busting study my operator and study progress doesn't get saved.

During a mission in Alaska, if I revel a stealthed enemy during the game I get a pop-up telling me that I've made progress in the Study. At the end of the mission, when counting XP I get the initial score score screen which tells me how much XP I've earned, but when it tries to add this to my operator it says my current operator level is 0, regardless of what my actual operator level is. When I click the exit to menu button the game hangs for about a minute and eventually I get a pop-up about progress cannot be saved at this time and will be added later. It isn't added later.

I don't get this issue if I don't complete any part of the study. I haven't tried completing any other studies.

The problem started after I was disconnected mid-game whilst completing the study. I think there was a server reset because it happened at exactly 2300 GMT and neither I nor my friends wee able to reconnect afterwards.