Transaction not yet indexed

mMckUEeDQffqUUPUUpkmDEWcSPgN2wSth5E3689Fk4AkXerUyzW4BgF6bGPxrtDJyKKWyJSZ4ANQ37z5RzaH4wp

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