Transaction not yet indexed

21SE87AfG8YZYFUA9oqy2RaubnV7mDqVUk7GPrPginXEV8TLzVYN1f6Ru28XJFrLQ4g3KxaVGHKp2ya2YSEJTvME

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