after my rival tried to play a card, the screen stayed with the back of the card and it never passed to my turn. i have a screenshot but i dont see any button to attach it.
If as above, I don’t think the screenshot would be helpful since this is an old issue. But for reference, you can upload the images to a sharing site like imgur.com and paste the link here, surrounding it with backwards single quotes (“preformatted text” button) `like this`.