First my device info Android version: 8.1.0 Device manufacturer: Alco Device model: RCT6A03W13
When I started using the device I was able to use the split screen mode. Now from one minute to the next it stopped working. I tried long pressing on the recent app button but nothing happens. When I go to the overview screen I don't see that little button on each open app that would let me select it to set split screen mode.