Hello,
can't login on Trello app from iPhone, when I open the app and redirect to window like browser to put my credential each time, I get message: "An error occurred while trying to validate credentials". If I try to login directly from the browser app on iPhone - Safari or Chrome is a success.
Cannot open the Trello app from browser link "open in app" I don't way may be because iPhone is on MDM platform and app is installed form platform not from Apple Store, but other colleagues do not have this problem and work without problem this is produce only on my iPhone.