[Android Q&A, Help & Troubleshooting] Peitso:
I'm using the latest version of "CNN Breaking US & World News" -app on Android downloaded from Google Play. The device I'm using is LG V30+ running Android 7.1.2 with latest security patches. The device isn't rooted.

Otherwise the app works just fine, but I'm unable to receive any notifications from the app. So far I've tried the different notification customizing options the app has built-in (including turning silent hours on and off and changing the density of news notifications per day). I've also deleted the cache and data of the app from the system settings and deleted and reinstalled the app quite a few times now. I've also restarted the phone multiple times and checked that the CNN app has proper notification permissions in system settings (and that the notifications aren't blocked or anything) and that no battery optimization is turned on for the app.

Other apps that I've installed on my phone are displaying their notifications just fine including CNN MoneyStream app that I've also installed. The CNN main app also displays notifications currently on my two other devices (my older Nexus 6P and iPhone 6s Plus). I'm also not using battery saving mode or "do not disturb".

The only other troubleshooting option left to do that I can think of is complete factory reset of the phone and/or wiping the whole cache partition clean. Since my phone is otherwise working very smoothly and there are no other issues at the moment I'm not willing to go there just yet. From previous experiences with Nexus 6P I've learned that sometimes wiping the whole cache partition can cause similar problems with other apps. Sometimes simply reinstalling the misbehaving app and deleting its cache can help, but that doesn't seem to be the case this time.

Before doing the most recent factory reset on my LG V30+ I wasn't receiving any notifications from AP Mobile (which now works) and BuzzFeed News (working as well) so this issue isn't necessarily tied to the CNN app, but is probably a larger problem with the way notifications on Android work. I've also tested the push notifications with a tester app and it works just as it should.

I recently did a factory reset because I was experiencing serious notification delays on my device. Some apps like Twitter displayed notifications with a delay of 30 minutes to 2 hours. Now all the other apps that I've installed are showing their notifications right on time (at the same moment with my iPhone 6s Plus and Nexus 6P).

So I'm asking you are you aware of any compatibility problems with the CNN app at the moment or is there anything else I could do to make the app show notifications correctly. It's a great app so it's really a shame that the notifications aren't displayed at all on my newest Android device. Of course I can use the widget for CNN, but it's just not the same. I've also emailed CNN app support about this issue, but they haven't replied yet.

EDIT. Just checked the running services from developer settings. CNN is using constantly over 200 MB of RAM on my LG V30+ (where the push notifications for it aren't working at all) and on my Nexus 6P (where the app works just as it should) just about 20 MB. So there's a significant difference there. The settings for both apps are identical. On my Nexus 6P there's also an additional process for CNN running (com.android.chrome:sandboxed_process0) consuming 2 MB of RAM. The aforementioned process isn't running at all on my LG V30+.