Connectivity issue Android 10.

Hello!

I'm new to this so, I'm sorry if its in the wrong section.

Can anyone explain to me why, after installing Host on three different phones with three different versions of Android (6,10,10), only the one with Android 6 works most successfully. For example, on an Android 9 device, if I haven't run Host, it doesn't work. On the Android 10 device, even if I run Host manually, it disappears after about 10 minutes and I can't connect. On all devices I stopped the dependence on the battery and there, whatever it is, as an obstacle for the Host app. I've been doing tests for a week, the cleanest works with the device with Android 6, the other two give anomalies. Second example with the Android 10 device, I run the host app manually, try to connect to it from a computer, make a connection, but I don't get a screen, none. And the phone reports a connection. Where do you think I should look for the problem?

edit: two device with android 10 and one with 6.

update: three work well when cable charger is plugged in. after restart of the phones only the one with android 6 can be connected. Other two need manual start of the Host app.