Hey Bryan! This sounds like it's actually feedback from you, but not necessarily a bug. We don't want people to forget they have a filter on and think they don't have animals, something we have experienced in the past regarding feedback. However, as you have feedback, please post it in the suggestion area of our forums. Other players will be able to share their opinion and what they think would work best, and then the team can look into implementing the feature. You can do this here:
https://forums.frontier.co.uk/forums/suggestions.401/ (Please forgive me if you have done this already, and if so please link me to it!)