No problems with crashing here. I have 5 yo twin boys with ASD and they both love trains, music and puzzles so they think this is a great app. The only thing that would be better is if there were more to do during the auto play sequence - they like building the train at the beginning so if there were something they could build at each page stop that would be great - I know theres interactivity with the page but they like to do a little more than just tap the page.
OMum22 about Working on the Railroad: Train Your Toddler, v1.0.2