Help From The Community

Making a Phil simple card wallet. Nearly finishe, when noted delamination of green Horween calfskin lining from Hermann Oak veg tan exterior. Adhesive was PVA to the flesh side of the veg tan, allowed to touch dry. The two pieces then mated, rolle, and allowed to dry under weights for a few hours. Any fix? How to prevent next time? Afraid may have to disassemble and redo.