This specific problem was related to the OpenStudio model having over 200+ DefaultConstructionSet objects. We found out that this was added due to how the team was working in parallel in the project and then tried to combine the problem.

The solution was to run the remove method on all the DefaultConstructionSetobjects with the command line. Some of the red flags where

• The building was only 40,000 sf, but the osm had over 100k lines.
• EnergyPlus was crashing right at the beginning, so I suspected it was related to the section where the CTF values.

I think this is an EnergyPlus bug (it ideally should handle all of those construction sets, but maybe there are some memory allocation restrictions currently. In a real world scenario, we would not have that many construction sets.