Transaction not yet indexed

yMfmSRyKSQQ3npM4M9BiSFqPyZHfKf8sbmZMHcuJ4uyaMvpuCpLdA7cSHt5UHdzUSbXbZCGomT5Sfn2jdUtCYq4

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