Error with multigroup SAM

[Gothic Bird]

Hello

I am running the global variant of multigroup SAM. I could get the results from parameterEstimates fine, but when I extract the results from standardizedSolutions, I get "Error in tmp.jac %*% return.value : non-conformable arguments".

SEs,  p-values, and 95%CIs are all NAs:

This occurs when I use group.equal="loadings", but no issue without group equality constraint. Is it a bug or can I get around this? Thanks so much for your help.