The next step to diagnosing this is to get some logs by using the SmartThings CLI tool. If you have a computer on your network (Windows may be easiest), then it is a simple executable that you install and it will allow you to view log output from the driver. This may provide me enough information to figure out why your camera isn’t working.
If you are willing to take this step, then you can download the Windows installer here.
You can read this post for more information. Just be sure to use the installer file link above, and not the one in that older post.