Axis Object Analytics not working with HTTPS

Hi,

We've got a range of Axis Cameras deployed but are noticing that the Object Analytics isn't passing through.

I've got 3 sites in particular, 2 were configured previously with Object Analytics and it's passing through to create book marks in NX Witness. However the 3rd site I'm trying to do the same settings on isn't having much joy.

When the cameras are added via HTTPS the analytics events don't pass at all, if we add it in via HTTP it does. While previous cameras are all working on HTTPS.

Screenshots below of the rules with the camera added via HTTPS:
When we go to select a camera it says Analytics objects are not available for Boundary

With it added via HTTP:

Rules are working as bookmarks are being generated as the analytics detects people or vehicles.

NX Witness Version 6.1.2.42921
Axis Camera: AXIS Q6135-LE PTZ
Axis Camera Firmware: 12.11.77
Axis Object Analytics App version: 1.26.205

NX Witness Server is running on Microsoft Windows 10 Enterprise LTSC OS.

With this site we've got 6 other cameras following same rules and settings where the analytics are working.