Can't Add Certain Cards To My Collection
You must be logged in if you wish to post to the forum.

Hey there! Sorry to hear that. I've set up some debugging on the script. Can you try add them again?
Also, when on the page can you press F12 to open the browser console, try add the card and then check both "console" tab and "network" tab for errors relating to "uploadCollection.php".
This will really narrow down the problem for me! Thanks!

Same here. Looks like it's getting a 200, attempting to add cardid 24 for userid 321, but the response is showing the State as "Existing".
{"success":"Your pack has been successfully saved to your <a href='https:\/\/marvelsnap.io\/collection\/'>Marvel Snap Card Collection<\/a>.","State":"Existing"}