Somewhere in the internet archives, there's celebrity gossip/ blind items about her on that Hallmark movie. AE used to troll the IMDB boards, not just her IGs, but others and obviously her own.
The Xmas card movie had stuff about how AE would show up unprepared, didn't know her lines, had conflict with crew members, thinking she was on a movie where there were endless takes... just what you would expect.
But what was suggested is that she just could not get on with Ed Asner. He's long known as a pro and workhorse actor and wasn't putting up with her nonsense. He (allegedly) didn't want to be around her or near him on the set unless she was directly in the scene with him and then in very limited amounts. There's a lot of weird editing in that movie.
I will try to find it - I had been a fan of IG from the Forsyte saga and remember them as a couple but this was a long time ago.