Troubleshooting PayPal Subscription payments not being applied correctly
After applying the 7.7.0 update, some PayPal Subscriptions payment may not be applied to the expected invoice or client. Instead the payment is applied to a different invoice, which may also belong to an unrelated client
A change to the PayPal IPN data means that additional logic is required to handle the migration of Subscription IDs.
A hotfix has been created which will resolve this error by including additional logic to handle this scenario. It can be downloaded from:
Once the hotfix is applied subsequent subscription payments will be applied to the correct invoice.