Yesterday I've casted my 1st choice vote. Today I was about to cast my 2nd choice vote, but the system doesn't allow me to do so and says "Your votes are too old to be changed".
This is weird. Of course I'm not trying to change my vote, I'm just trying to express my second preference, after having already expressed my first preference yesterday. No change at all.
By the way, it is not stated anywhere that the 3 votes have to be cast in the same "time slot". I should be able to cast my 1st choice vote on day $d$, then the 2nd choice on day $d + 3$, then the 3rd choice on day $d + 5$, for example.
Did anyone encounter the same problem?