thanks Leah. It was meant as bug report rather than a plea for help so that’s fine.
For the benefit of anyone who comes across this thread I’ve worked around it with this in my theme’s functions.php to just put a further info URL in the event description when adding to google calendar
/** Use only the URL for more info for the description for gcal **/
function foow_tribe_gcal_hack($params) {
$params['details'] = urlencode('Details at ' . get_permalink());
return $params;
}
add_filter('tribe_google_calendar_parameters', 'foow_tribe_gcal_hack');