Since a couple weeks ago the basic item mode no longer works for League of Legends NA servers for me, while Mudfish does show traffic usage ping never changes even if I intentionally route completely across the planet. Full VPN mode does still work but obviously uses a lot of traffic so is very much not ideal.
Thank you for this report. If possible, please send me some game packets using Packet Capture with Mudfish link while playing the game with Full VPN mode.
To update the game item of mudfish, I need some game packets to analyze. I’ll try to test this issue at my end too.
I already uploaded a packet capture a couple hours after I reported this, not sure if you can still find that, will upload a new one too.
I’d left my answer on the packet dump topic you uploaded at Private Support menu. Please check it there. 
You can find your topics at https://mudfish.net/forums/iwrote link.