First time i visit the Water Mill in the map it gives me the 1000g but afterwards it also gives me the message that the gold is not available (the message you get when you visit the Water Mill twice in a week).
I didnt notice this with the Windmill
EDIT: Nevermind, it does happen to SOME Windmills as well. not sure why.
Just once I got these two messages in a row but I couldn’t make it happen again no matter what. This is strange, they should be mutually exclusive. I’m even thinking if I have accidentally closed the first message and clicked again on the adventure map to visit the Waterwheel again, which caused the second message.
If you determine a pattern when it occurs more or less often, do let me know.
While checking, I have noticed a mistake when Waterwheel gives you 500 gold not on the first week of the first month but on the first week of every month. This has been fixed.