Template Search issue

Please complete the following fields as applicable:

What version of the DMPRoadmap code are you running? (e.g. v2.2.0) v3.1.1

Expected behaviour: The search feature for templates should return the templates with titles that contain the keyword used in the search

Actual behaviour: nothing is returned i.e. no templates
Screenshot 2022-10-03 at 14 04 28

Steps to reproduce:
Log in (as admin/super admin) -> Select Templates (from the dropdown menu) -> Type a keyword and click on 'Search'