I have tried to answer your question twice but each time, it’s taking so long to run the file that I haven’t gotten around to investigating the solution. If you could post a minimum file that is needed to recreate the issue as the forum guidelines suggest, I might be able to get to a solution more quickly.
It also seems that I am not able to recreate the error on my machine. Your file ran fine using OpenStudio 2.4:
-Chris