The random leaves in the buds are stress leaves. You probably have a light leak, and a bad one, to get stress leaves that bad.Also are your temps up close to 90?
That's not Ca def.
It looks like scarring from old thrip damage, or K def. You also have a nute burn going on, where you can see the tips of the bud leaves are scorched. Flsuh and feed a 1/4 strength nute solution. Check your runoff pH to eliminate that as a source of problems. Poor pH can lock out nutrients.