My experience with detecting fiducial tags — hopefully someone will come in handy.
For now, I mounted PCBs according to old production documents, where there were no PCB mark (fiducial).
On the new PCBs, I used fiducial according to the recommendations:
1mm diameter Cu, ~ 3.3mm diameter without mask.
PCB FR4, mask green, galvanized gold surface and that's a big problem.
The gold shines like a mirror and I couldn't adjust the brightness and contrast in any way to get a clear point.
After a long experiment, I finally hastily made a scattering filter in front of the illuminating LED around the camera.
I used a semi-transparent HDPE plastic from a canister from IPA.
Only this did it work together with the adjustment of the 'Visual zoom' and 'Detect precision' parameters.
I don't have a full point, but brand detection and automatic position correction on the PCB now work.

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Where can I find what version of vision software I am using?
This implies that there have been some newer versions of vision software so what file do I need to update?

Thanks much