Hi,
For fullscreen youtube videos – could you check if the you’ve copied the jwplayer scripts as described in the Help Guide. Fullscreen youtube playback requires it.
Check Help Guide page 22
The thumnails shortcode can pull images from other pages. You’ll need to supply it the page ID. This doesn’t function if the images are not inside a page even though it’s already uploaded to WP media gallery.
If you need to have the images in in the media gallery but not inside a page – and need to have them inside a page as image attachments then i’d recommend to navigate to the images – save them locally and upload them to the pages requiring so. WP needs the images in page to have them recognize as page attachments.
Thanks
