Track targeting paste functionality broken with latest update
Previously, the lowest-numbered track that had the targeting selection toggled on (the right set of buttons on each track) would be the one that new items are pasted onto. Now when you paste, it pastes to whichever track the source clip came from.
For example, if you copy an audio clip from track 1, and then paste it elsewhere with track 3 toggled on for track targeting (and tracks 1 and 2 toggled off), the clip will paste to track 1. Before this update, it would have pasted to track 3.
This is actually by design in the new version of Premiere Pro. It's been a long-time request from customers to change how assets are pasted. We believe that the new behavior is the best choice, but we understand that some people may prefer how it was done previously.
There's information about this in the What's New page: https://helpx.adobe.com/premiere-pro/using/whats-new/2022-5.html#paste-same-track