Rotational play means always ill pets

@belpita Hope it helps. Please let me know! To clarify something... I meant adding them to your fav households - played, but not on a lot. If they are in the unplayed households they run a small risk of being deleted randomly, I believe. If you want to REALLY make sure nothing is going on with them while you're out, you could move them in with a sim in the  re-arrange households area, then save that household to your library. Then when you are ready to play them again you can add them to a lot from your library to get them back into the game and then move them in the re-arrange households area back to your family. This may strip their relationship ranking, but I think you have a base amount there anyway. Couldn't say for sure without testing it, but hopefully the dogs will also have retained any skills (like being potty trained) like the sims do when uploaded/downloaded to/from the library. Anyway, if it's a bug maybe that would help some for now. Maybe you could actually move all of your pets in with one sim and upload that household to the library to 'store' it in this manner?