The New Rule button on the Business Rules tab of the project blueprints is not responsive. You click on it, but it does not respond. You can not edit the existing rules on the blueprint either
This is an issue with all the project-type blueprints.
On other types of blueprints, there is no issue
Clarity 16.0.3
There is a large number of project subobjects enabled for Modern UX.
In Clarity 16.0.3 with 25 sub-objects of the project object enabled for MUX, the issue is reproducible.
In Clarity 16.1.1 this is not reproducible.