So, has her appetite been funky since day 1? Does she act okay right after eating and everything...no odd behaviors, right?
You can try different flavors of Wellness, but go slow, as it does look like she may be sensitive. You could also get some canned (or fresh) white potatoes or sweet potatoes and mash them, put a bit of salt/butter and give w/ meals - a lot dogs like those carby deals and carbs can stim appetite (plus the smell of carb/butter can be nice). Remember, dogs eat first w/ their nose.
Another thing to try is to get the canned Parmesan cheese and sprinkle it on the kibble - it has a nice pungent smell and is attractive to dogs. Good luck and please keep us posted.
And welcome to YT
!