Glueing ebony?

[KrEn]

Now all my laminated bows have been made with West System Epoxy, save a few thats been backed usin carpenters glue (white glue).

Never had a problem save for once with too low temp/ short curing time and now:

I cant get ebony to stick to osage! Looks like some osage fibers stuck on the ebony, but the riser popped right off this one. No harm done to rest of the bow, but i need to glue it on again. How to?

K