I have been able to produce one bug that I saw on a you tube video where after laying a path( i assume that was the trigger) peeps began running in a single file line all running to the coaster, the only coaster I had in the park at the time. Closing the coaster sent everyone out of the line and those that were not able to get in line went back to normal. Several times I have noticed peeps in the exit of a freshly laid flat ride even though I have not connected the exit to the main path. I assuming they were transported from a near by path.