Hello: Our team is receiving an error in PVsyst that we believe is related to the detailed shading scene that we created for the project, which will not allow us to run the energy production simulation. For a project that is being built, we have a desire for the shading scene to take into account the different tracker row heights and north-south slopes that are a function of the terrain. To do this we built the shading scene where every tracker row is its own PV Field object. Then for each tracker row we applied an axis tilt to reflect either the north facing or south facing slope that is seen in the field. Lastly, we inputted a height that is based on the average top of pile heights for that specific row. This was completed for every single tracker row in the project. When it came time to run the simulation we received an error that states that N-S horizontal axis tracking: the axis orientations don't match. Attached for your reference are the source files. We have not been able to figure out how to resolve this issue and would greatly appreciate any support or guidance that could be offered. Thanks, Sam Baxley Solar PVsyst.zip