I added wallpaper and when I click it, a full-res picture is showing, I tried to change preview using smaller image, deleting preview from gallery, add logo but it doesn’t do it, it shows big… I can’t remember if firstly I didn’t add large as prev but next I used smaller image?
https://www.pling.com/p/1322376/
Thanks for reporting the issue, this has to do with the new video category and will be fixed with next update.