Auto return for website payments not working

[AVD1]

I'm about to launch my client's website but I can't get PayPal to redirect to my Thank You page.

The site is WordPress using WooCommerce and PayPal integration + Braintree.

Within my PayPal business account settings, I have assigned a URL to bring customers back to my website after they pay with PayPal.  The URL is to a custom "Thank You" page (https://(mydomain)/thankyou/).

However, PayPal is redirecting to a unique URL which takes customer to an error page (PAGE NOT FOUND):
https://(mydomain)/checkout1/order-received/5032/?key=wc_order_9hpzN741dBkd1&utm_nooverride=1

I've searched PayPal forums, reached out to PP Developer support, but need an answer ASAP as to why this is happening & for a solution to fix it.

Any help is much appreciated!

[katherynmaddoxh]

Me too.  I see you never got a reply.

I have tried for hours and it still doesn't work.  When I enter my URL, then save, it says in little red letters "try again".  In fact, I'm even having trouble with CAPTCHA, even though I'm logged in.

This is the URL I am entering:  https://comeflywithme-tv.com/thank-you/