I received an invoice from node Z and my node (A) suggests me 4 possible routes.
If the first two routes fail, are there cases in which funds get stuck into one of these routes until the HTLC expires?
Which are these cases? are they avoidable?
If I try the routes with a failed hash can I avoid to have my funds locked in a failed attempt (or It's better to test routes with few millisatoshis)?