Deleted record was the solution.
Late coworker had added a place to delete records I've never thought off.
Customer seems to use this on regular base, but normaly the garbage collection catches the problem.
(>ლ)
Words are given to man to enable him to conceal his true feelings.
Charles Maurice de Talleyrand-Périgord
Weeks of programming can save you hours of planning.
OffThere is no place like [::1]