Without workflow and footage details, it is impossible to give you a solution. I almost always trim the footage I'm going to motion track, sometimes add color correction to improve the sharpness and edge details, then Pre-compose, moving all attributes to the new comp and trimming to the Comp Length before I run Camera Tracker on the Pre-comp (the nested comp). This fixes frame rate problems and improves Camera Tracker's likelihood of working well. You should also have your Composition Panel set to Full resolution.
Footage format, Memory Allocations in Preferences/Memory and Performance section, and other open apps can cause problems with Dynamic Link. You should have a whole number multiple of 4 GB assigned to other apps in Preferences (4 is the minimum), and you should close all unnecessary apps when you run Camera Tracker, Rotobrush, Warp Stabilizer, or Content-Aware fill. Trimming, color Correcting (you can turn it off after), and Pre-composing is also a good idea when you use CA Fill, WS, and Rotobrush.
If none of that helps, try using the three dots to the right of the Creative Cloud/All Apps/After Effects/Open button to roll back to a previous version. If that fixes it, you can try updating again. You can also try resetting your AE preferences.
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