Hey @hublercardsandcars . Sorry nobody replied to you sooner, and also sorry I don't have a great answer here.
It's correct that "Player" is not allowed as a variation in trading card categories. There are several fixed attributes like that.
Did you use "sell similar" from another listing? That's the only thing making sense to me because the system is supposed to prevent you from selecting the Player attribute. The only way around it is to copy an old listing that hasn't been updated in years, and the system kicks out the error when you try to publish the updates.
Generally sellers create a custom attribute like "Player Name" so it won't interfere with the fixed item specifics.
Unfortunately there is no way to convert that draft without losing all the work. The best way I know of is to create a new draft then copy/paste the info into the new draft with an allowed attribute.
A lot of trading card sellers use the bulk upload tool. If you learn how to use that, you're creating spreadsheets and any error is fixed by updating your spreadsheet without losing the data. Perhaps that will help you moving forward.
