Messenger notification and bubble issues

Hello

I have a One Plus 2 on Oxygen OS 3.0.2 and Android 6.0.1

Since Yesterday at 11:00 PM, i have a big notification issue with Messenger only in my OP2, i doesn't post in the forum of OP2 cause i think it's a general issue with messenger

I'm not sûre but i think this issue appears when i install "DISA" i think, i've uninstalled this after but the issue is still here


I ask a friend to send me few messages, when i left the apps, i don't receive the messages, but messenger keep receiving messages in background the apps is not killed or something like that

Also, when i left a conversation in messenger, the bubble don't appear automaticly like before

Everythings is allowed in authorization settings for messenger, notification are also allowed in messenger


And the bubble features is set to on

I search on google before posting here, and i've found two things :

"Activate GMCService" I search this GMC Service in Applications > System Processus and nothing it's calling like that

Some peoples said also to allow messenger to display pop-ups(not bubbles, pop-up), they find this in Settings > Autorisation (or permission i don't know how it's called in english) but i don't find this parameters, the only thing i find is the autorisation i showed to you

I try to reboot and uninstall>reinstall messenger

So i'm a little losted, if somebody can light me that's can be great

Sorry i advance for my baaad english, i'm french but i don't have use Google traduction, cause i know it's worst with it.

Thanks for reading

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