Galaxy S8 no rotation from portrait to landscape

I have an android Samsung Galaxy S8 and when I start the app it goes in to landscape mode but immediately following goes into portrait mode. I rotate my phone no matter how and once in portrait it won’t switch to landscape.

Hi there,

I am very sorry to hear that.
Could you record an exemplary video of the explained behaviour and send it to us via

Thank you in advance.

Cheers,Lukas E.