Referral Settings Issue with Subscription Renewal

I’m running into an issue with subscription renewal commissions not persisting in Referral Settings, even though everything appears correctly configured.

Setup:

FluentAffiliate 1.4.0
FluentAffiliate Pro 1.1.0
FluentCart integration enabled
Recurring Commission module enabled
Subscription product is a FluentCart variation subscription (monthly tiers with upgrade path)

Problem:

When I enable “Affiliate Commission on Subscription Renewal” and save settings, the checkbox resets after leaving the page.

Using DevTools, I confirmed the payload is sent correctly:

referral_config[enable_subscription_renewal] = yes
referral_config[renewal_rate] = 20
referral_config[renewal_rate_type] = percentage
referral_config[max_renewal_count] = 0

However, the response from the referral-config save request removes those fields entirely and returns:

"Referral settings updated successfully"

with no renewal config stored.

So the renewal settings are being stripped server-side even though FluentCart integration is active.

Question:

Is subscription renewal commission currently supported for FluentCart variation subscription products, or is there an additional integration-level renewal toggle required that isn’t exposed in the UI?

If renewal commissions are supported in this configuration, what condition causes FluentAffiliate to discard the renewal settings during save?

Would appreciate clarification before launching the affiliate program.