Transaction not yet indexed

5188fApmyRVKWNHFfjkket1pCjrgX96pjYKAyTZ6jTuJcBhhFUS1zrJBUmFZhFPk8JjCnNnPSk2wk1Ltcm6AL2tk

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