No primary mortgage because too many rentals?

[Billy Bob]

This is a new one. I called a well known CU about a mortgage on a primary residence. They said if you own more than THREE rentals they will not accept a mortgage application on a primary residence. This is even if I own all of my rentals outright, have great credit and have low DTI. They said this is their latest stipulation for a primary mortgage because of the virus. Huh? Has anyone encountered this lately? Anyone have an idea of why they would make that a lending policy?