Transaction not yet indexed

53Em4HJLffkmTLVbFb1VvqY26ZDvk8LBAsz3xNzTgxs72vaG4cuXfQgRrSknJ5jBpFJhc3pFyicLeYBXoGfo5Js

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