V3 cameras won’t show playback while V2 cameras do?
You need to provide more information. Subscription to CamPlus? Settings on cameras for recording/detection, etc.
As @WildBill indicated, a more detailed description of what you’re experiencing and what you’re trying to accomplish (steps you’re taking in the app, etc.) is necessary for us to understand what’s at the root of your question. For instance, are you seeing some kind of message in the app when you try to view microSD recordings? If so, then where and how are you trying to view these recordings?
Welcome to the Forum, @fishermandw62! 