Metadata Card Customisation Rule Not Working

I have a weird problem with the metadata card...

I'm trying to make a fairly simple rule, that will do filtering based on a boolean value - if the value is not "Yes" then a series of fields are hidden.

What ends up happening is that the fields don't hide until I click away from the boolean field several times. If I change the filter condition to use a property which is NOT a boolean then it works without a problem and quickly. Anybody else experienced this?

I've tried with multiple different boolean variables, and in all cases the rule is delayed unless I change it to filter based on another datatype.

        {
            "Guid": "1a66adc4-9412-4288-af52-497d7c1fab14",
            "Name": "Hiding Client Evaluation",
            "Behavior": {
                "Properties": [
                    {
                        "Property": "PD.AgeOfBusiness",
                        "IsHidden": true
                    },
                    {
                        "Property": "1389",
                        "IsHidden": true
                    },
                    {
                        "Property": "PD.KeyContact",
                        "IsHidden": true
                    },
                    {
                        "Property": "PD.Conflicts",
                        "IsHidden": true
                    },
                    {
                        "Property": "PD.ReferenceCheck",
                        "IsHidden": true
                    }
                ]
            },
            "Filter": {
                "ObjectType": [],
                "Properties": [
                    {
                        "Property": "PD.ClientStatus",
                        "Operator": "IsNot",
                        "Boolean": false
                    }
                ],
                "Class": [
                    "72"
                ]
            }
        }