Transaction not yet indexed

mdKub2n4YKf4AnD2xyXdduX9QK2zojpeqMfAVFpPenvXdD29y38TsU1Mk9EUACVTrPSgFZbKz6KaF6hfLjyr8Df

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