Transaction not yet indexed

mYumhRh28zueQWZjnRJsxAYKFGbtBxZahz4Q7EGSMyP8V4fqssEofbmcEuS2SyAf4Ze3m3U6hqVAzAD2B2fiWRR

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