BrightTALK Standard Webinar does not currently support animations/ builds and links in your PowerPoint presentation. When uploading your slides, be sure to flatten the builds/animations or remove them from the deck. Links can be included in your slide deck as plain text but can not be hyperlinked.
The Pro Webinar platform supports animations / builds, but links will not work.
You can use the 'Attachments' feature to create clickable links for your audience which are tracked in your reports.