Nah, the 7 selectable filter buttons.... For some reason the 'Apply filter to route' gets deselected half the time you click one of the filter buttons.
Lets say you setup your filter for 'Star type - KGBFOAM' for your trip to wherever... A system in your route has Bio's, you stop to scan... You change map view to see all stars to see if there are any 'H'-Mass stars nearby, maybe you can get lucky and catch a triple black hole system.... nope, nothing interesting, so you hit 'next system in route 'key binding' and attempt to jump... and of course you can't jump cause now it comes up with that stupid message telling you 'You Can't Jump' (even though you just got finished fuel scooping before going to find that dang Frutexa in the mountains... So you go back to select that KGBFOAM filter and click recalculate so it will let you jump to continue on your travels.... you click the Star Type filter... half of the time it un-checks 'Apply filter to route' ( but you didn't notice because you already setup your kgbfoam from before... doesn't make sense that your jump range has changed) . Now it starts routing non-KGBFOAM' stars mixed into your route.... That's because when you clicked on the 'star type filter, it un-checked the 'Apply filter to route'.
Sorry if I'm not typing clearly... So tired that I fell asleep 4 times writing this... and that was number 5...