[SOLVED] Sensei does not start after upgrade to opnsense 21.7.1

[RamSense]

Sensei does not start after upgrade to opnsense 21.7.1
it fails to load

have others this problem also?

[RamSense]

If other users have this problem also:

After upgrading to upnsense 21.7.1
I noticed a change in settings -> interface - LAN.
The LAN interface - IPv6 Configuration Type -> was set to "Track Interface"
This caused the sensei crash at my end.

When I changed this to " none"
And save, sensei can be started again and is up and running now.

Update:

p.s. There where some more things to fix on the interface part also see here: https://forum.opnsense.org/index.php?topic=24248.0