Hey @Nita, those must be some pesky bugs. It looks good now.
However you should know that republishing wasn’t the fix on my end. What worked was uploading a new thumbnail in the showcase settings, but not just any thumbnail. If it was already formatted to 540x360 it wouldn’t work, yet if I uploaded something larger that needed to be cropped it worked. So that’s what I ended up doing for each project.
Not sure why that did the trick but it did. Maybe add a way to remove the thumbnail image. Right now the only way to remove an image that doesn’t work is to replace it with another.