Multiplayer can't be triggered in settings once entered a world

I'm using Xiomi Redmi Note 9S. Both before and after update the beta version all of a sudden I can't play with my friends using cellular data. In the main menu before enters the world I see no problem turning on multiplayer function but once enters a world, anything related to multiplayer seems completely unable to interact with... I'm pretty sure this is a bug because my friend with a same phone brand has a same problem but my other friend I can just joined his world just fine. Please fix this, my friend and I work so hard on that world and we have a lot of fun. Thankss