How to trigger ShieldConfigurationExtension?

On pressing the secondary button on my ShieldConfigurationExtension, I remove the shields by setting shields in the named ManagedStore to nil in my ShieldActionExtension.

// ShieldActionExtension.swift
let store = ManagedSettingsStore()
store.shield.applications = nil
store.shield.applicationCategories = nil

Now after some duration I want to re-apply the shields again for which I do the following:

// ShieldActionExtension.swift
DispatchQueue.main.asyncAfter(deadline: .now() + unlockDuration) { [weak self] in
            self?.reapplyShields(for: sessionId, application: application)
        }

private func reapplyShields(for sessionId: String, application: ApplicationToken) {
    store.shield.applications = Set([application])
}

Followed by the completionHandler:

// ShieldActionExtension.swift
completionHandler(.defer)

Now the expectation is ShieldConfigurationExtension should be re-triggered with store.shield.applications = Set([application]), however I see the default iOS screen time shield.

This behavior is experience when the blocked app is running in the foreground. However, if I close and re-open the blocked app - the ShieldConfigurationExtension is trigerred again correctly.

If I do a completionHandler(.none) instead, the overriden configuration method in ShieldConfigurationExtension is not triggered.

How do I make sure ShieldConfigurationExtension is triggered if the blocked app is running in the foreground when the shields are re-applied again?