there is lots of other spots with the same issue, other map bugs are also frustrating, like flying trash, walls inside buildings, tree inside building etc.

Hello Darcion and thank you for the report.
The issue has been confirmed along with the other floating hay bales in the area and they have been scheduled for a fix.
Regards,
Geez

this issue https://feedback.dayz.com/view.php?id=27425 has other hayballs

Hello Darcion.
The issue has been fixed internally and should be fixed on Steam soon.
Regards,
Geez