Playback of forked courses
When a course is forked OPath tries to make it possible to compare runners on each leg even if there are different number of posts. To make this possible we consider the base case to be that you have the minimum number of posts on each forked section. We then skip posts for runners with more posts on their fork.
What this means is that if runner A has the posts Start,41,42,31(common) and runner B has Start,43,44,45,31(common) both runners will start on 31 if we click so the runners should start on post 3.
As of now there is no way to get around this and compare runners on the leg 45->31. If there is a lot of interest for this feature we will try to add it.