Hello,

Steps to reproduce:

1. export template in for example .json format
2. in exported template delete one UUID, for example from: "groups":[{"uuid":"",
3. try to import template

Result:
in a result template woudln't be imported, error would be shown:
Invalid parameter "/1/uuid": cannot be empty.
Expected:
possible import of template with missing UUID
did manage to get this error on current 6.0 and 7.0