this actually isn't uncommon if you aren't one of the top stars of a show (which obviously she isn't), when you are a secondary person or further down than that, you show up to film scenes on days they tell you and then they decide what makes the cut after and never inform you
so, she could have gotten scripts for 7 of the 10 or 12 episodes and shot a total of 24 scenes but then they cut 6 of them lets say... and of those 6, that could be all 4 from episode 4 then 1 from 2 other episodes so she just doesn't know
I take it as a good sign they flew her to cannes and had her walk the red carpet for the premiere, you don't do that for people who aren't in the show or only for a few seconds here or there