Transaction not yet indexed

621RGCgFuYhtBhwKrDTj48VSKHJ4F2Mt5nbrvQEKWWdgSxAb1LajHgysz5foxWACB4EC7KFEUDL4eq9CUL7k9PEH

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