Split screen on Huawei P30 Lite

Hi everyone. I’m new on this community.
I hope there is someone can help me.

Is it impossibile to split screen on mi device. Huawei P30 Lite Android 10. When I try to split Brave with another app, Brave doesn’t work anymore, instead the app (every kind of them) works fine.
When I come back to only Brave, its still black window, and I have to close and reboot.
I’ve already disabilited the Flag VULKAN, but doesn’t work.