Can't share computer audio while sharing screen in webinar

[Konzeptd]

As a host I would like to share the screen to show the presentation during a webinar. It has videos included but for some reason I cannot tick the box to share computer audio while sharing the screen. How can I do so?

[DeniseLahat]

disable the "allow multiple share".  General recommendation to share video not from slides but via screen share/video

[IzyT]

thank you. it seems to wiork

[IzyT]

same problem