Dynamic Checkout Buttons not appearing on Product pages

Hoping to get an insight to resolve the issue as Shopify advisors have failed to help.

Website → coolgymstuff.com

I have Dynamic buy buttons turned ON for my theme and I can see the button when i customize my website or when i access my website as a logged in user. But when i access the website as a Guest or in the Incognito mode the EXPRESS CHECKOUT button does not appear on all the product pages (it does appear on the final check out page though).

I have already tried clearing my cache, cookies and even tested on different browsers and different PCs/ mobiles but the issue persists.

Above are two screenshots. Left one is when i am logged in and Right one is when i am accessing as a Guest. Dynamic buy button is missing on the right one

Any help would be greatly appreciated.

I am experiencing the same issue and cannot find any solutions. Hopefully, this will bring attention to the problem. I am using the taste theme.