Variables exposed to cinematics don't show up in sequencer track list

I’m trying to set up a blend value for a specific animation slot in an animation blueprint, that I’d like to be able to change through Sequencer. But with the variable having both Expose To Cinematics and Instance Editable checked, I still can’t see it in Sequencer. I created a test project to make sure the issue would still happen in a simple project and attached the screenshots here. Am I looking in the wrong place for this track in Sequencer? Any ideas would be appreciated, thanks!

Attached images show the animation blueprint and sequencer track menu.