Hi !
Just letting you know that I run into the same problems in my new save playing in Europe. I have to restart the game each and every time in order to have the correct "Money for FA's" amount after a player changes his mind and refuses my offer. It doesn't reset itself to the correct amount if I don't restart the game, it's really tedious during the offseason.
Also, one of my player signed in the NHL, and I again was granted "phantom money" that allowed me to exceed my initial wage budget :
https://imgur.com/a/vHovA1O
It doesn't seems to be league specific, I ran into the same problem in ICEHL and Allsvenskan