Known issueFixUpdated · 3 replies on Steam
Horses of Hoofprint Bay: Staff "Bug" with Work Assignments (Workarounds)
Short answer
Suggested fix (unconfirmed): Assign staff to particular horses instead of the whole stable to avoid overlap. Divide stable boxes evenly between groomers to prevent them from choosing the same horses.
The problem
There are two different staff that grooms 9 horses each. If both of them are assigned to all stable boxes you would expect 18 horses to get groomed. However you likely will get way less then 18 horses groomed because both staff pick horses without caring what the other staff picks so they might just pick the same horses and you could still just have 9 horses groomed despite having both staff…
What players suggest
It's not really a bug, but a part of the management aspect of the game really. Like, the problem you speak of is certainly a thing, but I wouldn't call it a bug as much as I would call it part of the management aspect of this horse stable management sim. You can assign staff to particular horses to avoid that problem, but if you don't want to fiddle with that if you have a high-turnover kind of…
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Source: original Steam Community discussion. Quotes are shortened; all credit goes to the posters.