Google & YouTube

The Shopify shopping ribbon, which is intended to show products from my store in the description of my YouTube videos, did not work/appear on my latest YouTube video upload. It worked/appeared on legacy videos, but not on newly uploaded videos. When I contacted support about this, they couldn't tell me why this was happening, nor did they address my concern. They basically said "sometimes this feature will be available in videos, sometimes it won't be - it's random." If that's the case, this is not something I can direct my customers to use.