Hello Lin,
Have you tried selecting "Mark as Known"
Ruckus marks neighbor Access Point, based on scanning for beacon,s as rogues but this does not mean they are causing issues on your network.
Malicious rogues are detected AP's that might be causing issues or attacking your network and if you enable Malicious rogue prevention the Ruckus AP's will try to block users from connecting to these devices.
If you enable rogue prevention and then mark valid neighbor detected AP's (via BSSID - MAC address in the beacons) you could be blocking valid clients from connecting to valid AP's ... this may not be legal in many locations.
Even if you mark detected neighbor AP's as Known they may appear again if new AP's (with new BSSID MAC addresses or new SSID's are detected). Also the neighbor AP's may be getting detected by multiple AP's in your network, and each of these will provide an entry in the rogue list.
Here are some additional Knowledge Base articles on rogue detection and prevention:
Details on Rogue APs and Rogue DHCP
Query on Rogue -APs Vs Rogue -DHCP
https://support.ruckuswireless.com/articles/000003248
Ruckus Rogue Detection type classification
Type of Rogue Access Points detected by Ruckus ZoneFlex system
https://support.ruckuswireless.com/articles/000001261
I hope this information is helpful,
Thanks for choosing Ruckus Networks - a Commscope company