There was another version of SoB briefly put out by another user, prior to mine coming out. If for some reason they didn't overwrite with version 3.0, and still have that beta version, then you won't be able to see their cards as both you and opponent are using different version of SoB. Another reason may be someone decided to update my SoB with better images or to correct an error they found. If they did that, and are using their own modified custom set, then you won't be able to see cards. My next official update will be coming out with the next set release. It will include all the digital images from UDE's website, and will have new advanced filters. Until then, if you keep experiencing this problem, let me know and I'll see what I can do to ensure everyone has the same up-to-date version.
Must get ready for Conts... (sounds much worse than Nats... lol) - Northern General