Error while using Two Level Inverter

I am using a Two level inverter for PV array. When the two level inverter model type is selected " Switching Function" the model runs fine. But the problem is the value of the harmonics are very small. For this reason, I was trying to use model type " Switching Devices" instead of " Switching Function". Now, the PV Dc output is going to zero. I am not able to find what is wrong in my model. Can someone help me regarding this ?

[Walter Roberson]

Are you referring to Two Level Convertor https://www.mathworks.com/help/sps/powersys/ref/twolevelconverter.html ? Because Two Level Inverter is available only through File Exchange contributions.

[Prithwi]

Yes, I am talking about this converter. When I try to use " SWitching Devices" in model type for PV inverter the DC voltage goes down to zero.

[Sabin]

Can you share a model? It may be a sampling problem