That's not was the question was. This isn't about getting a notification reminder later. This was about getting two separate notifications at the same time, not a later reminder. I'm getting two separate notifications from Facebook messenger at the same time in the notification bar. One is a system notification and one is Facebook's notification. This started when I updated my Samsung Galaxy to the new update this month. March
This did start for me only after updating to Android 9.0 Pie also. Actually Android made Samsung get rid of a lot of amazing features such as pop-up window or snap window where you can have two apps open at the same time because you need to do calculations with a calculator and look at your finances in a different window. They also made them change a lots of other stuff which makes the Samsung phone better than the iPhone; if they keep getting rid of it, it's going to be a lame phone just like Apple.
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Exactly my problem but I only used Microsoft Launcher and Action Launcher. I then factory reset my phone TWICE last week to get it to stop but it keeps happening. I don't have my secure folder holding anything that I know of, because I don't see 2 apps in the apps list under settings (usually if there's a dual Messenger or dual app due to secure folder it shows 2 apps, one without icon at bottom & one w/an icon on the bottom). Well, all the apps I get double notifications for don't show 2 apps, so it's not the Launcher and not secure folder; factory resetting doesn't fix it, come on Samsung. We'd all be much happier if we were allowed to reach them, let them know, and they fix it and we all be happy. It's so annoying that we pay for something and can't get it fixed, that's one huge flaw in the software world. Fix this already.
For my situation it could be that the launchers left some lingering settings messed up but I deliberately didn't transfer old settings to the new factory-reset version of my phone. Factory reset may possibly not work if you have a backup but there's no way I'm not using my backup bc I refuse to lose all my info/apps due to a Samsung bug.
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