Change of minute with wrong seconds
Irregularly, timestamps show second 60 instead of 00 for subsequent minute:
10:34:58.00 7815 10751 9714 2069 3359
10:34:59.00 7816 10749 9713 2069 3359
10:34:60.00 7818 10745 9712 2069 3359
10:35:01.00 7817 10744 9713 2069 3359
10:35:02.00 7816 10747 9716 2069 3359