I noticed with my colleague that once the access point is in survey mode and you try to change to configuration (output power in my case). The access point doesn't broadcast the survey SSID anymore but I do see the AP in my spectrum viewer.
However if the access point isn't in survey mode and you change the configuration to the one you need in survey mode. After switch the access point to survey mode, it keeps the previous configuration and it broadcast the survey SSID.
I my case I didn't had to change the configuration during my survey and this way worked for.
EDIT: I didn't use the newer version because we have to request special access to the meraki dashboard and it is a hassle.