This could be a bit of a problem. The crop should be empty by morning. She may have a bit of a slow crop. I'm sure you have a source of grit available, but it's always a good idea to offer it free choice. Since she is hesitant about going out - then she may not be drinking enough. Just keep a watch on her.
Your video explains a lot beautifully, Thank You for that. We aren't pointing fingers, etc., just trying to ask some questions, so we have a better understanding of how your flock operates. Each one is unique
@granny hatchet has made some very good observations and suggestions - I agree with adding some poultry vitamins to the water once/twice a week for a few weeks (all can have it), but checking that crop function is a very good idea as she pointed out.
I do offer grit in a plastic coffee can lid for free choice. I don't let her stay in the henhouse, I tske her out if she doesnt go after 1 hour each morning. She does drink. Water has 1 tbsp ACV per gallon. Salmon and boiled eggs! Is this a vitamin fixer? I'll try this.
I suppose it might be possible. But they arent getting all of those things at once or even on the same day.Is it possible they might be just a little spoiled and getting more treats then 10% of their total diet ?
Good to know. Now to get her to eat it!
I made a soft scrambled egg right after reading this cuz I was on my way out to shovel snow to the coop and out of the run (the part they dont use yet). I got them all vasilined up, not an easy job, and waited a bit with them. 3 went in but not you know who. Took advantage of that by closing the pop door and letting Repecca have the egg in the small run. I offered it on a clean sour cream lid because it was red. Nope. She even tried to wipe it off the lid with her beak. 
Guess she doesnt like it. Instead she went back to the crumble and ate her fill, had some water, then walked up to me looking up and sat chirping. I took this to mean "I'm ready for bed now." She never even flinched when I picked her up and put her inside. She's so gentle. She looks at my sneaky hand with either eye but doesn't run. I wonder if she sees them as shadows. We can guess forever but better I rule out everything other possibility.
