Switch [Bug] Animals "looking thin" and grumpy without cause

[Robogirly]

For the third day in a row around half of my animals say they are grumpy today or looking thin, losing hearts (previously maxed). They all go out any sunny day where they have plenty of grass, I pet them nearly every day, the barns and coops are fully upgraded with auto feeders, multiple silos all full, I have heaters (its summer now but they are there) only thing I can think is that this is a bug? Anyone else have this issue?

 

[Kika]

That is so strange...! Are your animals able to get back inside at 5? After 6 it affects their mood. I think it used to be that if you go to bed early and close their barn doors at night it helps their mood too but that may have changed. Try petting them every single day. If you have the Shepherd or Coopmaster profession then petting gives a higher mood boost. Maybe you've already seen an improvement but either way take care!