Number of WLAN Clients not correct/missing

[amg666]

I am using 4 Unifi access points and 3 different VLans / different WLan-SSID (Default/Gast/IOT).
In the adapter e.g. the number of "iot" clients of an access point is correct, but the data point unifi.0.default.health.wlan is zero:

Screenshot of vap_table of the AP "Garten" shows 8 iot clients (which is correct)

Screenshot of DP wlan shows overall 84 clients (which is correct) but zero iot clients (obviously wrong, should be at least 8 clients)

iobroker on a nuc proxmox container (debian 12)
beta repository, NPM 9.8.1, node-js 18.18.2, js-controller 5.0.16
unifi adapter 0.6.6

unifi manager on a nuc proxmox container (debian 12), unifi network release 7.4.162
Access points U6-lite, device versions 6.5.64