Not Reciving Beginner Story Mode Achievements for Season 1

Hi All,
I’m going back and working on completing all of the story mode achievements for Season 1 characters. I completed Sadira, Spinal, Glacius and Fulgore in the last couple of weeks but I didn’t get the relative Beginner achievements. I did, however, get some of the Medium and Hard achievements as applicable and I also got the beginner achievement for Maya, all also in the last couple of weeks. Is there a glitch somewhere or did the beginner achievements for Season 1 somehow get turned off because I’m incredibly late to the party?

P.S. - I’ve attempted to complete each story line in beginner, medium and hard modes and still no luck.

Have you tried doing the stories again but doing it without trying to go for (or doing) the Medium and Hard conditions?