I have no idea if Pbase administration is listening us, but meanwhile I had some of my galleries are 90% with red "X". I know it's temporarily and probably in several hours it will be back again, but what if you just posted PAD image and you want everyone to see it, but it's return just red "X'?
Well, I think I might found the way to fix this right away. You probably won't do it for the entire gallery, but for one image what the heck... worth to try.
So. If your lovely picture is showing red X even for you, here what you can try to do. Click on "Edit pciture" and then on the edit page, UNCHECK the "This image is publicly viewable" button. Then hit update. Then "CHECK" same thing again and hit update one more time. Now try to view your image. It worked for me 100% I've tried. Still there is no guarantee it won't happen again, but for several hours you night be good.
Michael.