Problems since 6.0 update

[Geehome]

Facebook messenger has gone crazy since 6.0 update. Keeps repeating notifications for old messages please can anyone help. I tried text talking to support bot but all of the things it kept asking me to do wouldn't work for me

[BandOfBrothers]

What did support suggest @Geehome 

I assume you cleared the cache of the app concerned. 

Also checked it's preference settings. 

There's also > Clear Cache Files from the phone's System Partition Section  > https://www.samsung.com/uk/support/mobile-devices/how-do-i-clear-the-cache-on-my-device/ You may need to insert your earphones or hook upto a powered On Laptop or use a Tv's USB Port to access the Clear Partition Section. This may help with lag or stutters as this clears the phone of old/unused or broken cache files.There is also a Repair Apps option in the Menu System too. 

If I can be of any further help then please don't hesitate. Take care.  😎 

[Geehome]

Thanks I will try this tomorrow. The support got me to check all the usual things, uninstalling and reinstalling, resetting, force stop, restarting phone, clearing cash and data on app. When I was asked to do a factory reset I refused as I felt until I knew more I didn't want to do that. I'll let you know how it goes, thanks for your message