Transaction not yet indexed

MFk5ZJp5M7rm2s6TLSRvtLDwEn7e2p5ph5RN72Kn8Cnao9JNdGxLSWf1vo6u7kxYNJmoa3REGS7QWcC2XBEY8UE

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