Oh hey, didn't expect an answer here in this thread.
I should have written a report on github - the one you are refering to isn't mine, and also a slightly different problem.
But since I had a really hard time even finding anyone else with this problem, and pinning it on kopernicus in the first place took quite a bit of searching as well, I thought that it was intended that way...
Anyway, my encounter with the bug was when I got several SENTINEL contracts and couldn't fulfill them as the probes were not discovering any asteroids. And also the contracts were disappearing some time after accepting them without any notice. Except for one comet-search-contract, that was the only one that stayed for some reason...
I read a post from you somewhere that SENTINEL contracts should have been disabled by default with kopernicus? Can you maybe change that to a toggle setting or something? (I like my many different contracts )