@Spoony2144: With the tablet unlocked, swipe from the top of the screen to the bottom, then again to enlarge the Quick Panel, and make sure that Auto Rotate is enabled. If it is, tap on the words 'Auto rotate' (not the icon above) and this will grant you access to the advanced settings, including the ability to toggle on 'Lock screen' so it rotates to Landscape mode when you turn the tablet on its side. Make sure to tap 'Done at the bottom of the screen after applying your preferred settings, and you should be good to go.
I bet you set up the tablet with Smart Switch?
Smart Switch breaks the tablet's lock screen for people and even though auto-rotate is enabled, when the device is locked the lock screen is stuck in portrait mode.
Only fix I've read were people have had to factory reset their device and set it up from scratch without using smart switch.
Hopefully this is fixed at some point. It's ridiculous that Smart Switch (Samsung's product) breaks their device that's suppose to be compatible.
UPDATE: I was able to solve this and still use Smart Switch.
1) I did a factory reset on the S8 Ultra
2) Pulled down the quick settings menu on my phone. Made sure the auto rotate feature was enabled.
3) Long pressed on the auto rotate feature which brought up advanced settings and enabled home and lock screen rotation.
4) Connect the 2 devices together and open smart switch.
5) When selecting what you want to restore, do not restore Phone Settings or Home Screen in the options.
You may not need to do all of those steps, however after factory resetting and leaving restore Home Screen unchecked alone didn't fix the problem. I had to factory reset again and did all of the above and it worked.
I found out that if you have already used smart switch and it messed up your tab not being able to go into landscape on the lockscreen, that you can just turn the setting on, on your phone that you would've had if you didn't use smart switch on your tab. And then just use the wire to connect the two devices and just transfer your settings and it should work.
I've used the smart switch from s22 ultra. How do i go about fixing this without factory reset? I've also reset one ui by clearing cache and data. That hasn't helped. Installed the newest update - Dec 1 patch. I used wireless when setting up and i don't believe i selected home screen settings from my phone when doing so. Would appreciate a quick workaround. Anybody reported this to Samsung?