I’m using the Horizon theme and I have an issue with the product grid display on collection pages.
When I hover over a product card a very thin, vertical line appears on the right side of the hovered product card, right next to the next product. It is a left piece of following image.
The line is only visible when the next product photo has a colored background. The issue only occurs on products that use the product media slideshow (where the image changes on hover).
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.