Hi, I will be glad to help if you need information or to test.
Just to add a little more info I’m using Fortinet AP. When using multiple SSID on the same AP it create Virtual AP (VAP) with each a different MAC (only first 2 character are changing)
SSID on Same AP with different MAC exemple :
SSID1: TEST1 08:5B:0E:B6:64:75
SSID2: TEST2 1A:5B:0E:B6:64:75
SSID3: TEST3 2A:5B:0E:B6:64:75
Let me know if you need more info.
Thank you