I’m running the CAPSManager with 12 AP’s, most of it is working fine, it is a great tool.
Next is I want to add an extra SSID to one AP. I’ve created a specific provisioning profile and linked that to the MAC address of that AP. Indeed the extra SSID is added to the AP, but the problem is that the first (original) 2.4Ghz SSID is not removed. The 5Ghz SSID is still there. How can I add a second SSID to that AP? Any suggestions?

When provisioning, you have one master and the other virtual AP’s as slave.
Provisioning them all as master is not correct.
Anyway, without a config nothing is certain.
Here is my provisioning config:
/caps-man provisioning print
0 radio-mac=00:00:00:00:00:00 hw-supported-modes="" identity-regexp="" common-name-regexp="" ip-address-ranges="" action=create-dynamic-enabled master-configuration=Config_Home slave-configurations=Config_Guest,Config_Admin name-format=cap name-prefix=""
Excellent, the slave config is the key word I was looking for. Thanks for your help. Appreciated. Thanks.
Solved the problem, found the issue. The radio configuration (the band) of the two configuration where not the same. After changing them to gn the problem was solved.