title: Issues with double estimation of SEM using lavaan.survey
body: <p>I am running a structural equation model with <code>lavaan.survey</code> package to account for complex survey design. </p>
  
  <p>I have three latent and two manifest exogenous variables, and a manifest endogenous variable. All variables are ordinal. </p>
  
  <p>I run sem with "DWLS" estimator followed by the same estimator with <code>lavaan.survey</code> function. This is giving me weird results, with large standard errors and p value close to 1. </p>
  
  <p>I don't follow the 2-step estimation (with and without the survey procedure) employed in <code>lavaan.survey</code>. Do I need "DWLS" in both estimation steps. Or can I use robust Maximum Likelihood for the final estimation?</p>