Transaction not yet indexed

mymdD2VMwusvcqeVp8U4SWPdj6yAczqaBgwpasW85ZRjHjupSorhEzLrEBvos9Xk4RgSCeVJ3BbcQTFEponMrF7

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