aaahhh yes perhaps indeed yes... Phew! I'm glad we got to the bottom of that one.
Pastry type snack... hmm... I use Mouse's goji victoria sandwich for weekend snacks at times, cut in small slices, but it's not pastry like.
You could make a "wrap" with your oatbran (spreading the galette mixture thinly onto a silicon sheet with a palette knife and baking...), and over cook it for crispiness (did that once inadvertently!).
If it's CRUNCH you're missing, how about vegetable crisps (slice with potato peeler and bake)? Or on PP day, protein crisps (cut up turkey slices and bake)?