Can't select any lineup in feud matches

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What exactly is not working?

I cant choose any line-up in faction feuds. The box were i choose the line is not possible to click on

Where in the game did it happen?

Arena tab, faction feud

What are the steps to reproduce it?

When or since when did it happen?

A couple of feuds back, maybe 3-4 weeks

How often do you experience this issue?

Every feud since then

What device are you playing on?

Samsung

Which OS and game version?

Android

0.626.23101750

What is your in-game name (case sensitive!) - (obviously also your Forum name)

Tiny76

What have you tried so far to fix it on your side?

Tried reinstalling the app, login out and in.

Any Screenshots or videos of the issue that help us to understand it better?