I have been fighting a situation on my network where it will occasionally hang and reboots are required. I have 2 SG2216 switches - one at .250, and one at .251

I turned on syslog monitoring and the only odd thing i see are messages like this - and a lot of them:

Aug 23 08:33:10 2019-08-23 08: 36:47 X.X.X.250 71565 The switch has learned a new MAC address 00:fc:8b:d1:e4:8a, vid:1, interface:port 10.
Aug 23 08:33:15 2019-08-23 08: 33:14 X.X.X.251 71565 The switch has learned a new MAC address 00:fc:8b:d1:e4:8a, vid:1, interface:port 1.
Aug 23 08:33:34 2019-08-23 08: 33:33 X.X.X.251 71565 The switch has learned a new MAC address 00:fc:8b:d1:e4:8a, vid:1, interface:port 1.
Aug 23 08:33:34 2019-08-23 08: 37:11 X.X.X.250 71565 The switch has learned a new MAC address 00:fc:8b:d1:e4:8a, vid:1, interface:port 10.

It seems odd to me that the switch is re-learning this same MAC address all within 24 seconds of each other. It does these same bursts about every 5 minutes.

Is this normal - or is it a clue to what might be causing me issues?

Thanks for any assistance.