I have the V4 on my window at my hummingbird feeder. Before I upgraded it to record, it was only taking steals and I would get beautiful pictures of my hummingbird. Then I upgraded it so it would record the hummingbird and it will not record the hummingbird record everything else.
Do you mean you bought a subscription for it? If so do you have it set to “all motion” or “smart detections”. You likely need to make sure it is set to “all motion”. The subscription allows you to use “smart” and it may default to that now, but it probably won’t detect a hummingbird in that mode.