Transaction not yet indexed

mNbEF21ydeqwi2ETb3F8tHN6ZJBWv9CKmxZHiTQmJLesp19yLLfXw5kivEFi9d9fmigN6KuzRxVvNX1VzWNVCZt

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