Hello everyone,

I hope you’re all doing well, and thank you in advance for any help or insight you can share.

I’m experiencing a tracking sync issue that started after a temporary 4K test in my setup.

Setup: 4-Engine Aximmetry (2025.3.0 Broadcast DE), DeckLink 8K Pro G2, SDI input 1080p50, 3-Sony BRC-X1000, currently genlocked.

Everything was working perfectly two days ago. I temporarily inserted Blackmagic HDMI ↔ SDI bidirectional converters to test 4K with the PTZ (limited SDI on set) and added genlock to the whole setup.

After the test, I removed the converters and returned to the original 1080 SDI configuration (same cables, same framerate, same routing). Since then, tracking no longer aligns properly. Even after disabling the sync generator to revert to the previous non-genlocked setup, I cannot achieve a correct tracking delay.

The issue only appears during motion — at rest everything aligns perfectly. This suggests it is not a calibration, lens, or static offset issue, but rather a timing or phase problem between video and tracking.

Has anyone experienced tracking that aligns at rest but drifts during motion and cannot be corrected ? 

I even did try to change the frame delay in both the cam module and in the settings

The auto tracking delay find around 2 frames but I have these results :

https://www.swisstransfer.com/d/6631ba96-40c2-4e1b-95a2-a09929623e99

It’s the best I can get with the 3 cams

Thanks again for your time and support — any suggestions would be greatly appreciated.