Have you checked the card to see if it’s taking the pics but not sending? You can also look at the portal (if you are using premium) and check the picture numbers. If there are any gaps, the camera is taking pics but not sending them.
3-4’ is high unless the camera is aimed downward some. Which camera did the turkeys walk in front of?
How strong is the signal where the cameras are located? I’m running a USCb but it’s roaming so I have no idea what service it’s actually using and nothing in this area is strong. That poor camera takes longer than any other camera I have to send a pic but it manages most of the time. I’m amazed at what it manages.