Thanks for reporting this 
Judging from what you’ve described, this is some kind of scheduling task issues. Very similar to my topic from a while ago: Homework schedule system not working properly - Not exactly the same though, because the jobs are programmed differently than the general homework schedule, I guess.
In my case, playing through a few days up to a week somehow fixed the system. It performed a quiet reset and suddenly the tasks appeared at their designated times again. I haven’t found any other proper workaround yet, unfortunately.