I’m very new to Infuse only having set it up a couple of days ago. I’ve come from Plex and am slowly getting up to speed with Infuse.
I have a bunch of my own video files running on an Emby server which I access with Infuse on my Apple TV. For most of the files, the posters show correctly (an automatic screen cap from the video). But some of the videos either show a ticket icon or a white rectangle. I’ve included a photo of what I see.