Can anyone recommend a wallpaper seam repair product? I had prepped using primer and hung pre-pasted vinyl backed wallpaper (have done this dozens of times with success). Everything went fine and then a couple of weeks later certain areas starting coming loose at the seams. The wallpaper is in a guest bathroom that rarely sees use so I can't blame it on steam from the shower. I tried using Romans wallpaper seam repair and even crazy glue but nothing works. I can't take down and redo now, we are prepping for sale. What have you used with success? Thanks.