Transaction not yet indexed

Ub51mMobn4egDtF2RjKHitYCoct9asTvX64cb2bsHbQCSyEg8FkKfAeW1k2EPHfYfGp5e1786X1YpDyBqbUMMYT

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