Transaction not yet indexed

AR664GsSEM87hjGLtuYsuTR5PJ1fTEtiLGja4QEbTJGmPSbWsQfMPmPFneLYQ8VRJgJfmiGL7P8qFvF8Tswoe18

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