Anybody know why these “crashes” are occurring? As you can see there are numerous places where items are running into one another on this page. I thought this was not supposed to be an issue with Dorico. Have I changed some type of setting that created this issue?
No. Space size (rastral size) is the basic unit in Dorico - it’s the space between two lines on the stave. You are trying to squash many instruments onto a Letter size piece of paper. To do so without collisions you would need to make everything smaller, or you need to increase the size of the paper.