Transaction not yet indexed

Kb5dApzASGpPqUE4YcFUheeAMfeN3ZirYaaEAKWA6wHTkFiftkhdSnDP678Bux9eTsqjcq8sjgvvRGZ1xq5Uv71

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.