Hello,
yesterday I updated my phone (Samsung Galagy S7) to official Oreo and from this time I experience some problems with KLWP:
1. Setting KLWP as live wallpaper generates error - application stopped, but after restart it can be set.
2. Rotation of the KLWP doesn't work at all. KLWP stays at portrait mode, but in the KLWP editor rotation is still working.