thanks for the speedy response.
i just worked out a solution though….
i originally was inserting the shortcode in the wordpress editor element inside of thrive and that was giving me the problem above.
i have just tried inserting the shortcode with the html element inside of thrive architect and all seems to be working fine.
i can render the page and go back in and edit again. all is ok for now ??
if any issues i will update again, but for now this issue is resolved.
thankyou