Transaction not yet indexed

28UsyDtSkNNVMQ48kTp6q2HcegjXB1zf2HBwCGfckxmB6vVyGbZXDmS64pApJZYPnJEnovyGm4CBQGJcGc2nLDS6

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