This issue has been going on for literally years unresolved (first experienced pre-2023 at least, I asked support at the time but no resolution).
When working across 2 screens, you have to click somewhere in the Trello desktop app BEFORE selecting a card, otherwise it picks up a random card from the same list.
With a busy board this is very disruptive, as you end up moving things out of order or losing where things are.
Dual monitor / extended monitors seems to come up a lot across different bugs on here. Please could someone look into this part of the functionality and get it working smoothly and as expected? Many thanks!