Re: After Post, restarting browser = Error 500 macroName is null
Posted by
MichaelAtOz on
URL: https://support.nabble.com/After-Post-restarting-browser-Error-500-macroName-is-null-tp7600392p7600422.html
Yes it was labled 'preview', but not the original preview, via pressing the Preview Message button.

After I press Post Message it also says Preview ie

That is where, if I do not navigate away (I usually switch to another tab/window), then later restart the browser, I get the OP error.