I have a DVR8-4980 and it appears that Swann pushed out an update overnight. When I powered on my TV which I use to view my cameras. It showed that an update was pending. I was half a sleep and unfortunate didn't pay as close attention to what all it was suppose to have addressed. Maybe someone with Swann Support and provide us that specific info.
The new version: V7.1.0-20180419
If you have your DVR set to auto-upgrade you should see this update automatically. If you have auto-upgrade turned off, you may need to turn it on and then manually do a check if you want to update.
The one thing I am seeing which I won't be able to verify is fixed. PIR and Motion now showing up on all camera's. When I got to Alarm, all 8 of my cameras now have PIR and Motion showing in the menu.