I’m facing an issue with the Horizon Theme, indeed the card drawer is not well displayed after adding a new product. It does display well again when refreshing or changing the page (but very randomly)
I tried to customize the css, add js but with no effet.
Can you share a link to your store? And the password if the frontend is password-protected?
Because we can only guess now, I could not replicate on my test shop with the Horizont theme. It could be different settings, different theme version, some external app, custom code …
Welcome to Shopify Community! Can you share your Store URL so I can have a look on it? Also, if you have password enabled then please share the password as well. Your cooperation would be greatly appreciated.