That's probably not much, but i can share more of my findings with this issue.
So the way i reproduce it is very simple. I write some words in Libre Office (since i haven't notice this behavior anywhere else) and then simply try to copy/paste them one by one with ctrl-c, ctrl-v keystrokes in the same document until i get the previous selection pasted and not the current. It might take some time till it occurs, like the most recent time it took 24 times of copying words till it happened.