Transaction not yet indexed

28ZCgppxVtsMjUbGWfWs973hq1krwMRAk7WDpzRR8umGp1t4mcaTEFRM8nPScn3v4FNuPUtZgKVYBnmpz8i8R1m3

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