Guild Wars 2

While waiting for tequatl and trying to get into a decent server I’m obviously using the LFG tool to find parties to then port into the map. But the parties are filling up faster than I can join, however I am able to click the join button (lag obviously, my client isn’t receiving the response from the server about the party being full quickly enough), I don’t land in a party of course (since it’s already full) but it seems to register that I have, leaving me unable to join any other parties since apparently I’ve joined too many.
Ignoring whether the ‘too many parties’ functionality is even necessary (what was the use case for that anyway?) it would appear that the checking is done (I’m assuming) client side, that is to say each time I click on the button it registers that I’ve done so. However there seems to be no feedback from the server, just if I click the button but the server responds with a ‘well this party is already full’ whatever tally system is running on the front end doesn’t seem to be reflect this, choosing rather to see me as having successfully joined a party. Mind you this could also be happening completely server side, but I’d assume there’d be better checking server side for if I’ve joined a party of not.
Still somewhere something is receiving the message that I’m joining a party while I’m in fact not, leading of course to the ‘too many party’ functionality kicking in.

Anyway it’s by no means a new problem, so probably already come up a few times.