The repair at rib looks good. If need be, you could glass in the trigger plate, some precautions to not mess up the wood finish will need to be taken. Walnut can be soft, that is why I asked about trigger plate movement. As mountainman70 stated, your trigger/lock function could be off due to plate moving upward, test lock and trigger function. These kind of issues creep up on everyone on builds, don’t get discouraged, you built a nice piece. Get the kinks worked out and shoot some more.