Same problem here. Bot ignores the last blue in the group or fight a yellow and just leave when its life is low. I do not have the option to ignore them enabled.
I had the same problem, but I fixed by changing the "wait for loot drop - Delay after kill" from default 150 ms 500 ms. This only applies to GR.
Hope it would help.
My wizard can do up to 56 with decent success rate, however I choose 54 for better efficiency (almost guaranteed completion with 5-7 minutes to spare).
Standard Vyr build with Unity and Mara's Kaleidoscope.
My CDR=59% and I feel it is extremely important for the bot to work better. LOH...