Transaction not yet indexed

21mHxk8b6d8uxAnDVVy33P2AVAe7itsePFE5uogvkuo3uQRfXZaSj8AkyNUS1v2Y55DKtA88KsCtcCmc4bZGLPP8

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