icloud backup not backing up camera roll

Thanks javaliga! You helped me greatly! My iCloud backup is now correctly backing up my camera roll.

I failed to say in my original post that I was doing this on my iphone 6 ios 11.2. So the steps are a little different and I will document them here in case anyone searches for this in the future. I could not find it via search hence my question here.

Steps to make sure your iphone Camera Roll is being backed up with your icloud backup:

1. Settings > Your Name (icloud at the top) > iCloud > Photos > Make sure Cloud Photo Library is turned off (white)

2. Settings > Your Name (icloud at the top) > iCloud > Manage Storage > Backup > [Your Device] (under BACKUPS) > make sure Photo Library switch is on (green).

You have to make sure BOTH steps are done above in order for your camera roll to be backed up with your iCloud backup. This Apple article is misleading, or perhaps outdated: What does iCloud back up? - Apple Support

It states:

Photos and videos on your iPhone, iPad, and iPod touch¹

1. If you turn on iCloud Photo Library on your device, your photos and videos are already stored in iCloud, so they aren't included in your iCloud backup.

This is NOT true (only partially true)

You have to turn OFF iCloud Photo Library on your device (step 1)

AND

under "choose data to backup switch on "Photo Library" (step 2)

Step 2 was the part I was missing that javaliga help me find. At some point this must have been added as a new setting or was switched to off as default (maybe with ios 11?) since my backup was working until april 2017 and I am sure I never turned this off, at least intentionally, its pretty hard to find.

Thanks again javaliga!