OK, I've recently just discovered this plugin to populate on my server. But I've come across a problem. When I place a sign on the wall. Sometimes it puts the image from my url onto the sign & sometimes it says, Unable to find sign. Move closer & so forth. I'm close enough to edit it the normal way, so I should be close enough to use the /sil <Url> command. I've made a pretty big base with walls, I've placed xl & xxl frames on my walls. But even though 1 frame is next to the other (for testing purposes) 1 will allow me to do it, the next wont & maybe the next 2 or 3 & then it allows me for the remainder.
Something is preventing it from always detecting signs. Are signs limited by distance from the TC? If so, it shouln't be. So long as I can place the painting, I should be able to put my image on it.