In my original post, the note played differently between a YouTube teacher demo and mine was in a chord. But I only noticed it not by hearing the difference, but by looking at the YT teacherās fingering.
So, hearing a single wrong note buried within other notes is some ability I am not born with. However, since Iāve started doing ear training a few weeks ago, I begin to see a glimmer of hope. The training showed I am stronger in rhythm, but weaker in chord recognition. Even things as simple as telling between major triad and minor triad I could not get it 100% correct in the beginning. But with practice, I am seeing improvement. It will be a long, though.