Transaction not yet indexed

5261eYDoW9K5AypsgFuYfKMhN4rhAG6kSFXE2cxer5W3A2UPsXC6PbpPLzNBAishGvcNX4YRww2VoHAJNk3ZMPB9

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