Actually, the latest version of Electrum on Android currently has many bugs reported on Electrum Github. Which is I think the Electrum app still in beta version?

You can check this link below to see the other bugs about the latest version of the Electrum app.

- https://github.com/spesmilo/electrum/pulse


I suggest you install a known stable/working version of the Electrum app without any bugs.

You can download old version from here https://download.electrum.org

The known stable/working version is 3.3.8 so you must choose this version but before you downgrade make sure you have a backup seed/wallet.