Platform, device version and operating system:
Screenshot or image:
What you were expecting to happen, and what actually happened:
I have it set for upgradable normally so I see when I purchase or collect troops and can upgrade them. It currently defaults to no filter every time.
How often does this happen? When did it begin happening?
Just noticed today. Can not get it to set.
Steps to make it happen again
Attempt to save a filter. Exit and go back in. Filter will be cleared.