I found old post about clearing old AP from controller but for some reason I can't add RAP AP that was duplicate before. I was trying individual AP, all "clear gap-db lms lms-ip x.x.x.x, AP is not longer visible but I still get error that it exists
whitelist-db rap add mac-address "9c:1c:12:c1:7b:74" ap-group "mygroup" ap-name "AP-5-chicken"
RAP with same MAC address or RAP/Userwith same remote IP already exists
show ap database long | include 9c:1c:12:c1:7b:74
nothing
Even reboot of contorller does not help, version 6.5.4.5