Here is how it happens, tested it out and happened many times. I could swear this isnt how it worked before, at least I've had any mistaps before because of the prioritization.
So I've a betting decision on one table, but I choose to switch manually to another table which also requires action. Now it doesnt matter if I'm using the betting slider to adjust my bet-size on this 2nd table, when the first table reaches timebank it will be prioritized over the 2nd table. This is why those mistaps happened - I had adjusted my bet size, table switched right then, I min-raised on the another table.
How I thought this had worked before and how it should work IMO is that when there is an active betting decision on a table, it wont be switched away no matter what happens on another tables.
I very much otherwise prefer table prioritization on mobile, it saves so many taps when the table changes to an active decision instead me switching it every single time myself when I can see only one table at a time 🙂