Hey Niv, got a weird one.
I haven’t tested this anywhere else, just safari on iPad for now.
When I move a second player into a slot I have previously changed, that player’s position comes with them, as if the prior position was not locked. Sorry, I know that description is shit, hopefully this example helps.
Here is an example after moving Nola to the bench for Paddack and then swapping Keller for Paddack:
Here is the page after refreshing, Keller moves to the bench, leaving an SP slot unfilled:
Here’s another example with lineup slots showing up under the bench area and bench in the lineup:
I’m not sure if this is consistent, but I tried it across a few of my teams and the same behavior showed up.