Kuramaky

We can play multiplayer LAN and server but not multiplayer with xbox account, this is because NAT, we need NAT with the name "full cone" to play multiplayer with xbox account. This is why VPN is needed.
Developers have to fix this so that we can play multiplayer with xbox accounts without paying attention to NAT. 

Please fix this problem using vpn is very annoying

Neli Gibbs - is still the same as the previous version of Android 10 One UI 2.0, maybe the difference is the version number

You right, finally i got software update too and my Minecraft run normal. Thank you All..! Thank you Mojang..!

No software update on my country 😞 where do you come from?

Software update solve the problem? maybe Mojang has reported this problem to Samsung. I'm a Galaxy A71 user, unfortunately there hasn't been an update for my device yet, I hope Mojang will quickly resolve this problem 

(@Sarah Fajardo Thank you, I also have One UI 2.0, i think this version has a bug that needs fixing with Mojang and Samsung direct contact?)

@Maksim after updating what is your One UI version now?

I also have "error number -9" in Samsung galaxy A71 (Android 10).
I've tried on my old device Samsung galaxy A7 2017 (Android 8) with same account, everything is normal there is no "error number -9" and no bugs.
I hope this info can help.

Same problem too, i have Samsung Galaxy A71

One more thing I also have "error number -9" in Samsung galaxy A71 (Android 10).
I've tried on my old device Samsung galaxy A7 2017 (Android 8) with same account, everything is normal there is no "error number -9" and there are no bugs as above.
I hope this info can help.

Thank you.