Hi. I use cloud ddns, all was good.
I used current 6.43.2, but after 6.42.9 long-term was released - upgrade to long-term. After that DDNS don't update current IP adress, and has the old one for 2 days....
How can I fix it?
I have read in wiki, that "Since RouterOS v6.43 your device will use cloud2.mikrotik.com to communicate with the MikroTik's Cloud server. Older versions will use cloud.mikrotik.com to communicate with the MikroTik's Cloud server". Maybe it is the cause of that? Anyway, how can I fix it?)

Upgrade to 6.43.2, disable IP cloud DDNS, then downgrade and enable DDNS again.

From 6.43 changelog:
!) cloud - reworked "/ip cloud ddns-enabled" implementation (suggested to disable service and re-enable after installation process);