In the competitor app, if there are just a few stages and competitors selected, the red plus sign blocks the 3 dot menu for the stage at the bottom. If there are enough stages and/or competitors, you have to scroll and the red plus sign disappears. I’ve run across this a couple of times now.
Will be addressed in the 2.x app update. In the meantime you can try to turn phone 90 degrees or add another competitor to comparison.