Transaction not yet indexed

FSTkxrCM8PuTmmdNdZSGVmBdcjtamG8szHWXeHPjZ9N3ZnWJdeQD4bRo3oC6j4mssHit7EZ1wwYYKMePMk19Nc6

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