Transaction not yet indexed

Mb5fFbqRZZgQxtvid3D6S4mzHeAfAzBqm5GwSTZJ3GFndfwyk5UWDtBpQL4qJ9z21uh3ZLLuB3z4V33wWrm8GrV

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