When performing a mail merge from CRM to writer the preview function does not work.  I get the following error.

I am a Zoho one user on a ChromeOS. I have been successfully using mail merge from CRM to Writer about 4 years. 
This error seemed to coincide with the new CRM UI.  

I can complete the merge using any of the other options in Writer.  The only issue seems to be with the Preview.