Webkul MArketplace stripe webhook

In need of someone who has worked with webkul marketplace 5.0.7 to make webhook work
I have setup all and also added it to the db but:
1. via web page paying for an order ends with something went wrong, but order ius added to the sales admin list
2. via api/mobile the order is going through and order is added to the magento sales admin list

I need someone who knows how to fix this
according to webkul the marketing module should have a button for generating webhooks, but it is missing
I have also asked webkul and they respond like muppets-> useless

I need someone who has resolved this on a magento 2.4.3 p3.


WHAT HAS BEEN DONE

• Full REST checkout tested end-to-end (token, cart, items, totals, shipping, shipping-information)
→ Works in both test mode and live mode.

• Verified all Stripe keys (test + live), publishable + secret keys, webhook secrets, account activation
→ All correct.

• Test webhook events arrive and process correctly.
• Live webhook does NOT fire or is not processed.

• Checked Webkul module files:
PaymentIntentSucceeded.php
PaymentIntentFailed.php
WebhookHandler.php
Controller/Payment/Webhook
StripeProcessor.php
Observers
Plugins
routes.xml
di.xml
etc.
→ No missing classes or broken DI.

• Verified all mpstripe values in core_config_data.
• Confirmed module is in live mode for live checkout.

• Cleared all caches, sessions, generated code, preprocessed assets, redeployed static assets.

• Checked system.log, exception.log, debug.log, Stripe logs
→ No PHP errors during failure.

WHAT IS FAILING

• Test checkout works fully.
• Live checkout only fails at the payment-information stage on storefront.
• API checkout works in both test and live.
• Failure is isolated to Webkul’s live PaymentIntent confirmation flow.