I have the feeling that I lost a lot of my achievements.
I am not sure if it happened after the relegation or after ending the supporter or it's just a coincedence?
For example:
Monster Arena only 1 point (I have 20000 seats)
Happy Anniversary! only 1 point (I've been playing for at least 8 years)?
World Traveler only 1 point (52 home, 97 away flags - data from Buzzer Manager)?
and many more