Customers accessing a link via tiktok bio get a white screen when clicking pay by paypal

[tiktokmerch]

Hi there, 

I have a website selling products and customers accessing the website link via tiktok bio are taken to the site using tiktok's internal browser. They're presented with a white screen when clicking "pay by paypal" instead of being redirected to the paypal payment process. I use paypal checkout plugin on a woocommerce site which opens in a popup usually. I'm presuming tiktok are blocking the popup windows but customers were ordering last week through tiktok so i'm curious if this is temporary and if there's any way on paypal side i can possibly make it open in the same window? 99% of our customers are using the link via tiktok. 

Any help/advice appreciated.

Thanks! 

[tiktokmerch]

Just a follow-up, this is also happening on Instagram. Both were fine last week. 

[WhatADragUK]

Same problem here. Would love a resolution ASAP as this is harming sales.

[shoot_to]

having this problem as well.  seems kinda important