Since the update on 30 July 2019 when the phone is locked and I receive a message I open the phone and swipe down but there is no preview, if a message is received when the phone is open and I swipe down I get the preview as normal, but as I said if the phone is locked when opened the notification is there but no preview of the message
Don't confuse this with lock screen notifications, this is preview from swipe down after the phone is unlocked, all you can do is open the notification to see what the message was, but if the phone is in use the preview is there, this is the same with all chat apps, WhatsApp, messanger, emails etc and only began after the update yesterday
All setting were fine and are fine, it's set to show but doesn't anymore
Best answer by DamienCogginUK
You must have the same protection settings as me.
When you unlock your phone you have apps set to unlock with your face, works fine with preview, but not since that update the other day, I've spent ages thinking what was wrong or what I had most didn't, soo clicked the face to unlock certain apps, once I went back to that setting and allowed my chat apps to open without seeing my face it worked again, so it must be a security change that doesn't allow you to preview info if you have the app lock on, no need to factory reset, shame Huawei don't know this even exists lol
So search App Lock and unlock the apps you want to preview in the dropdown screen
I had it set so I can pass my phone to friends or family to make a call or anything but it stops them form opening my chat programs by mistake unless it saw my face, now I can't have that but I do have my previews back