I create template, Set LLD Host prototype with SNMPv2 Interface, on v5.4.8.

Import Exported YAML Template to v6.0.0, Successed.
But v6.0.1 later, Failed.

export host prottype interface setting:

import error message:

 
I created the same template in version 6.0.5.
When I import an export of that template, I get the same error message.