Discord kicks people who no longer are twitch subscribers

Hi there. I am streaming on twitch so my discord is integrated with that platform. Twitch subscribers gets special role in discord server. This role is automatically generated and has common permissions. Problem appears when person who was subscibed don't continue his subscription. If that happens, person is getting removed from my discord server without any notification. I've checked all role settings etc and didn't find anything that could lead to this behaviour.