None of the new trackers added after saving and closing file works

[nzzcoding]

I ran into a weird issue where no new added tracker tracks for more than 1 frame, the ones added before works fine , i even target some pretty obvious patterns (that used to work fine before)

here the tracker on the roof immediately leaves its zone despite the search zone being big enough, this apply to every added tracker, maybe I activated some parameter by mistake (keyboard shortcut) but I dont know how to fix it besides reworking on it, it shouldn’t take long but i really want to troubleshoot this.

[SFN]

Did you select the new markers before tracking them? I find it’s all to easy to add a marker and then forget to track it.
If they don’t have any tracks just select them and then hit the tracking buttons and blender should only track them (without re-doing the other markers).