I also created and tried a trial account on Dynamics 365 CE and I got the same issue.
Here are trial account versions
xiaomi note 5(android)
Dynamics 2019 release wave 2 enabled
server version 9.1.0000010329
app version 4.3.19111.22 (1,2)
client version 1.3.2472-191112-195614
iphone 7(ios)
Dynamics 2019 release wave 2 enabled
server version 9.1.0000010329
app version 13.19113.0.0(1,1)
client version 1.3.2472-191112-195614