Problème avec camera 3D tracker

If tracking restarts when you click on the Camera Tracker effect name in the Effects Control panel, you should probably use the Creative Cloud app to update, roll back a version, or remove and re-install After Effects.

If the analysis does not restart, make sure that the "3D Camera Tracker" is selected and highlighted in the Effects Control Panel to see the tracking markers.

Works just fine on my end, so the assumption has to be that once more hardware acceleration issues are getting in the way. Unfortunately there's really not much one can say other than "Update the graphics driver and check the settings." Perhaps you can also cheat it by pre-composing the clip and turning off hardware acceleration in the comp.

Mylenium

Without any info about your system, your project and its contents as well as the actual tracker settings we can't really tell you much. Aside fro mpotential technical issues this behavior could simply indicate the footage not being suitable for 3D tracking. A screenshot/ reference frame would certainly help to clear that up.

Mylenium

Can you please share your system info? Like OS and version, CPU, RAM, GPU vRAM, Ae version? Thanks. Also a screen grab of your issue will be helpful.

FAQ: What information should I provide when asking a question on this forum?
https://community.adobe.com/t5/after-effects-discussions/faq-what-information-should-i-provide-when-asking-a-question-on-this-forum/m-p/3928960#M3238