PC Boston Sprinter - Mbta Car Doors Opening For High Platforms At Low Platform Stations.

As can be seen here when I stop at some stations between Canton Junction and Providence that have low platforms, the trapdoors do not open when I unlock the doors. This does not seem to be an issue at stations north of Canton Junction, and the results are often inconsistent. Sometimes a few doors open correctly and the door on the cab car opens correctly almost all the time. I've noticed this happens more often when operating northbound with the cab car leading.