Step 1: Report the Bug
Check the bug tracker to see if someone has reported it already (and done the hard work for you)!
If the bug has been reported by someone else and has not yet been solved, feel free to add your own comments and upvote it so the devs get to it sooner!
If the bug has not been reported in the bug tracker then upload some screen shots and a description so the devs know how to fix it for you!
If you need individual support, it's best to contact the in-app support button in the Settings menu.