Transaction not yet indexed

2UM21sb8Mj7eR77TqWSHgZao7eRe37vTzpWjxVRsmrhvF2XpiEnGQ2JTvowAJJ2Dq2rTb8c4tZakMZJsigG637JG

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