https://community.monzo.com/t/monzo-for-android-beta-channel-changelog/10207/813?u=adinus
On the new release on android I go to the Payments screen. On “Pay” tab the refreshing animation appears and won’t disappear.
OS: Android 8.0.0
Device: LG G6
App Version: 2.30.0
Also occurs for me on a Huawei P10 Plus on Android 8 
Can confirm also S8+
Also on Pixel 2XL running Android 9 (5 January 2019 security patch level), Monzo App beta v2:30:0
Doesn’t seem to affect anything operational though, all taps in the Payments display work as they should.