The problem I've noticed here is that I am unable to connect when restarting the client in quick succession. This usually requires restarting the client two or three times, but sometimes occurs when restarting the client as little as once. I am able to reproduce this behaviour 100% of the time.
I never experience this upon the first attempt to start the client. The problem goes away either after waiting ~10 minutes or restarting my machine. This only began happening once the VPN/proxy measures were introduced.
I have the same issue. In between opening the client, logging in & going onto a server my client will also randomly freeze, forcing a restart. Not sure if related.
I also get disconnected from Maloria randomly sometimes when changing level or updating a script, but that issue has been happening since Stefans last client update.
It says "Couldn't connect to server" and then goes onto that black screen then it shows exactly what's shown in your youtube videos when it happens to me. Mine occurs when I open two clients in quick succession. Restarting my PC fixes the issue but not always. One time I had to restart my PC 3 times for this to be fixed.