Transaction not yet indexed

MmCTzj3EXCcPtw4SMZ2D8Zb3de6dTcZ3G36qiNvBRwdxFmX8VfBbDfgtHvbG8pwHfC8xrR1utQ2bCxdtzMZGyt1

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