Update interval larger than maxpoll

Hi
Chrony version
chronyc -v
chronyc (chrony) version 4.2 (+READLINE +SECHASH +IPV6 -DEBUG)
Linux version
Linux swntp01 5.15.0-105-generic

2 questions
The green line: Is it correct that the time is only 0,03ms off from the reference time.
The red line I cannot understand why I get and update period over 128s.
From the config file.
server mmo1.nts.netnod.se nts iburst minpoll 6 maxpoll 7

odin@swntp01:/var/log/zabbix$ chronyc tracking
Reference ID    : C23ACCC4 (mmo1-ts.nts.netnod.se)
Stratum         : 2
Ref time (UTC)  : Sat Apr 27 09:46:46 2024
System time     : 0.000013121 seconds slow of NTP time
Last offset     : -0.000007295 seconds
RMS offset      : 0.000003989 seconds
Frequency       : 51.591 ppm fast
Residual freq   : -0.000 ppm
Skew            : 0.010 ppm
Root delay      : 0.002788649 seconds
Root dispersion : 0.005857296 seconds
Update interval : 8004.5 seconds
Leap status     : Normal

Regards
Henning-