Have you recently deleted polish node? Last week everything worked perfect for me with settings PL>DE node for game B&S but i got some warning that node was disabled or something like that and since then i had to change settings. Just asking if there really was change or just something other happened because now even on best proposed nodes i have worse ping than without mudfish and can’t see same PL>DE options in advanced search.
Do you remember the exact name of mudfish nodes you used? Sometimes mudfish node could be dead but not sure this is a case for you too.
I could say that i remember name “HitMe” but it’s working right now one and with bad score so i’m not sure. Before it was even proposed as “today’s path”(This PL node>DE Vultr). I have to change nodes everyday now because any is’t too stable :\
I think “PL Europe (Poland - HitMe)” node is currently wrong. 
But please try to change a mudfish node based on FAQ - Nodes section for your game item. If you’re using the advanced mode, please start with the basic mode.