Transaction not yet indexed

53CU1XaVmxE8zc7pzpR5vKVmRN12EqMtGng4gMiXGPqNXCyAVeSDU14GPqhXJgpRkf2qZt3AW5c5p7Dp7GPGFLb4

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