Reboot then black screen with notification bar - Galaxy Note II Q&A, Help & Troubleshooting

I've tried all the 5.1 ROMs and seem to have the same issue with every one. I set up the phone, make backups etc and all works smoothly.
Then for no reason I'm getting random reboot. When the phone wakes there is no lock screen, just my notification bar and a black screen. Pulldown shows notifications, buttons etc. Power button shows reboot menu etc but the rest of the screen is black with no function.
I tried to narrow it down by trying different agni settings, running stock kernels, now trying different launcher as its always been on Nova.
There is no pattern to when it will go so getting a logcat isn't easy.
Any help or pointers, or anyone else had the same issue and fixed it.
sent from my SGN2 running RR5.1

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[Q] Lock screen pops up when using notification menu

I keep seeing my lockscreen wallpaper image for a split second when I follow links from the notifications list.
It's intermittent but often enough that it's starting to bug me. Sometimes the screen flashes to the main screen, then the lock screen, then the app. This occurs regardless of what background image I use, where it's stored and whether I have No Lock installed or active.
I'm rooted running bone stock ATT 4.1.1 ROM. I removed Wallpaper Wizardrii just in case. I also found an old thread that mentioned resetting after selecting lockscreen wallpaper, that didn't work - nor did tinkering with developer options (screen updates and strict mode). Both of those are off.
Any help would be much appreciated! I see several threads about this, but nothing seems to resolve it that I've seen suggested.

[Q] lockscreen

OK so eveytime I reboot one or two if my lock screen icons disappear I can't figure out why I thought it might be an exposed module but I uninstalled exposed and it still happens very randomly it'll either be the first or second icon or sometimes both all I have to do to get them back is go into settings and lock screen and hit save them there back anyone with any idea why this would be happening?

[Q] Lock sceen pic keeps disappearing

Per the title, occasionally, my lock screen wallpaper simply disappears to leave a black background. On one occasion the pic reappeared on its own but normally it takes a restart to rectify. My phone is not rooted. Any ideas on this ?
same issue here.
Is the pic located on your phone memory or SD card? Are you using a lock screen app or stock lock screen? Aftermarket launcher?
Using stock lock screen. Ive had this happen with pics on device and on SD card
Refreshing thread. I could not find any info around and currently experiencing same issue on:
NOTE 4, stock ROM, stock lock screen, KitKat 4.4.4, Nova launcher, pic. both on SD and device. Lock screen pic. disappear randomly turning into black. Lock screen settings:
- Swipe with popping colours - when on home WiFi
- PIN when on 3G
Settings applied via Tasker. Worked well on NOTE 3, KK 4.4.4.
So far tried:
- Clearing gallery cache - does not work
- Setting a different pic. through settings - does not work
- Restarting the device - works for some time until it goes black again...

Question Lockscreen not always showing

The problem:
I will hit the power button to sleep the device. I have fingerptint/pin set as my lockscreen. My lockscreen wallpaper and home wallpaper are different, so the issue is easy to see. I sleep the device, then anywhere from 1-30 seconds later I hit the button again to wake it. Instead of showing the fingerprint scanner and my lockscreen wallpaper, it shows my home wallpaper, with the small gesture bar at the bottom. There are two ways to get past this, swipe down from the top for the quick tiles and then swipe them back up and the lockscreen wallpeper and fingerprint scanner shows. Or I can hit power to sleep and then power to wake again and my lockscreen is there.
I thought the issue was with the kernel at first because I hadn't noticed it outside of installing it. After flashing to stock kernel I noticed it happening again. It happens once every 5-10 wakes. It's not super annoying, but still annoying.
I have tried backing up and restoring everything from Google One, then rooting, then with and without a custom kernel, still the same issue.
I have also tried backing up and restoring all my data through SwiftBackup. For apps I backup all user app data parts: APKs, Data, Ext. data, Expansion, and Media. (Not sure if I even need to but certain games etc I don't want to lose data). After I restore I use the same Magisk 24000 to patch and flash the boot.img.
No matter what I've tried, the issue still seems to persist. If it helps, I am on Android SP2A.220405.004
If anyone might know what is causing this or how I can fix it, that would be great. Thanks!

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