Multiple upcoming recordings are scheduled, and I can't delete the duplicates

There is more than one closed discussion about this, but I never saw a solution for this.  I'm having trouble on a couple of specific channels with duplicate recordings being scheduled (when I only want one), and then I can't delete the upcoming duplicates.  First, MGM+.  I set up to record "Nine Bodies in a Mexican Morgue," new episodes only, and the DVR will almost always set up multiple recordings of the same episode, on different MGM+ channels and on different days.  This is bad enough, but when I try to delete the duplicates, I get a message saying the recording will be deleted, but then there is no deleted icon displayed next to that upcoming listing.  Or if there is an icon displayed, when I go to delete the next duplicate, the deleted icon might appear next to that episode, but disappear from the first one I tried to delete.  Regardless of what I try, they all get recorded anyway.  Once they are recording, I can delete them, but it's a pain and I shouldn't have to do this.  

This happens with pretty much any MGM+ series I try to record, such as Rogue Heroes, Godfather of Harlem, Billy the Kid etc. in the past.

Similarly, with free MLB games on this week, I've set up to record any new games featuring the Twins.  For the next three days, they play the White Sox.  So the DVR sets up recordings of the same game on the White Sox channel and on the Twins channel.  When I try to delete one of them, it won't let me.  As with the MGM+ programs, once the game starts recording, I can delete one of the recordings, but I can't do it before hand.

I haven't had this problem with any of the other networks I watch, even if they, like HBO, for example, air the same episodes on multiple channels and multiple days.