Transaction not yet indexed

mt53rXQP2VqaYCDuJTgr3M2GvT4G2FUCEmmni2o61mBT9JSJuYCJfFdLzJom751Mk3y1r2ts6B6CcSywNULajCc

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