Its definitely a glitch, after updating my app the level asked me to collect strawbs, apples, water and 3 sheep and now it has gone back to asking for 6 sheep, carrots & water which is just impossible. My husband completed this level a while ago, he went back to have a look & his shows the original level with 3 sheep etc.…
I'm stuck here too and its seriously annoying. Never had to collect sheep that aren't already on the board and when eventually get another sheep it blocks the cropsies so frustrating!