Switch [HELP] Why are my animals grumpy?

[Eyeconic]

When I go to pet my animals I've noticed that quite a few of them are grumpy or "looking a little thin." The thing is, they have plenty of grass outside to eat, and it hasn't rained. It's not winter, and I have heaters anyway. Are they just not eating the grass? And if not, why?

I honestly can't tell if this is a bug or I'm just missing something so I'm gonna tag it as [help] for now. Here's a picture of the pen in case it helps.

 

[Bobbin]

Are you also giving them hay inside? I think they like to have both

 

[Eyeconic]

Are you also giving them hay inside? I think they like to have both

they do??? well that's a new one

 

[Aine]

If you go to sleep early then 6PM some of the animals doesnt go back inside the barn, cause them to be grumpy. Also, if the grass if far from the barn/coop, they can sometimes just dont walk to it, I know, it seems a little stupid, but it is better to have it really close to them, and have hay inside, just in case they dont eat the grass.