2.4.4 failover only with automatic not with gateway group?

[fips]

Hi,

i have a WAN and a WWAN interface both in a gateway group with "packet loss or high latency" trigger.
If I set default gateway to that failover gateway group and I pull WAN cable, the default gateway doesn't jump to the WWAN interface.

BUT if I set default gateway to automatic, it works like a charm.

Is this a right behaviour of pfsense?