PHP SDK REST API LIVE webhooks validation always failing

[pedrolopes10]

Hi there. Since 5 days ago after 4 years always working most requests are failing:

Using last version of PayPal-PHP-SDK

ERROR: Got Http response code 400 when accessing https://api.paypal.com/v1/notifications/verify-webhook-signature. {"name":"VALIDATION_ERROR","message":"Invalid request - see details","debug_id":"9d39093cc0cf8","details":[{"field":"webhookId","value":"WH-6VG40567YP789645F-94K532769H109170R","location":"body","issue":"must match \"^[a-zA-Z0-9]+$\""}],"links":[]}

[BadLame]

Spent a few days before finding this

https://stackoverflow.com/questions/62870568/how-to-verify-a-paypal-webhook-notification-diy-style-w...
```
The webhook ID will be generated once you add the webhook in the developer backend of Paypal. After creation of the webhook you will see its id in the list of installed webhooks.
```