Ok, thanks.
It seems to be a client side problem anyway, so no need to comment on the v3 server =)
I’m evaluating switching over to v4 from v3 for our servers. Many of us regularly simultaneously connect to multiple servers. In our use case at least, this is more than a minor issue.
NX use is expanding in our research group though, so we need more than the 2 users per server that the free version of v3 allows and it isn’t possible to buy the paid v3 any longer.