Why cant I set multiple lockscreen wallpapers anymore? (Android 8.0.0)

[Android Central Question]

I am using samsung galaxy s7. It was perfectly normal until I updated to the lastest version which I believe is Android 8.0.0. The font changes, the grid of the application folder changes, and the worst thing is I cant seem to set multiple lock screen wallpapers. I used to be able to set at least 5. Can someone tell me if this feature is removed or something? And are there any solutions for solving my other issues? Thank you guys for reading.