ROS 7.13 - bridge-fast-path-active

Hi,
ROS 7.13, HAP ac2, HAP mini.
when I add a guest WLAN network (virtual WLAN interface) and assign it to a single bridge or create a new bridge for it. bridge-fast-path-active is set to NO for all Bridges.
As a result, it has a large impact on the speed of connections between VLANs on all ETH interfaces. Anyone know why?

solved - by default, the guest network created with the wizard adds filters to the bridge. Creating filters changes the state of bridge-fast-path-active