Images not showing up on the shipstation interface for 1/4 of catalog after updating to Bigcommerce

[em-ab-ecom]

Issue: Images not showing up on the shipstation interface for 1/4 of catalog after updating to Bigcommerce V3 connection

CS has stopped responding. Has anyone else had this issue with Bigcommerce V3 connection? Do you think it is possible this connection will not bring over a parent/main SKU photo for a variant that does not have a child level photo?

Is this a problematic URL, does it need to be fixed?

https://cdn11.bigcommerce.com/s-sgvho9y4/products/205/images/5088/457D36H_1__60556.1638997467.1280.1...

Here is one that is working: http://www.empireabrasives.com/product_images/f/629/IMG_5192__00776.jpg

Common issues from CS that I have already checked: 
The ShipStation app sees a URL and registers it, but it fails to load the image. This would explain why it's not flagged as having "no image." Can someone explain this to me? My images are not large, all under 75K and JPEGs
 
Open the product details and look for the Image URL field. - All thumbnail URL fields are showing as empty for every Product detail page in Shipstation, whether or not an image shows on the Order interface. How do I find out if a URL properly synced over if its blank in BOTH situations? 

Odd behavior: no URL links show up on our product details sheet nor download, thumbnail URLs are empty. Even when the image shows up on the interface just fine, no URL shows up on CSV sheet or product detail page in Shipstation. So bizarre.

Other troubleshooting efforts: On the Bigcommerce product export CSV sheet

(NO photo showing in Shipstation) SKU 240120C-100 - no photo for it on the variant SKU line in Bigcommerce CSV export, but has a parent photo

(NO photo showing in Shipstation) SKU CPSAA12080-10  -no photo for it on the variant SKU line in Bigcommerce CSV export, but has a parent photo

(YES photo showing in Shipstation) SKU C50401-25 - photo URL is on the same line in the Bigcommerce CSV export: http://www.empireabrasives.com/product_images/f/629/IMG_5192__00776.jpg

[CaraAdmin]

Hello @em-ab-ecom!

First, welcome to the Community—we’re so glad you’re here! This space is an excellent resource for finding answers, sharing feedback, and suggesting new product features. We hope you find it both helpful and inspiring!

I see that you’re currently working with our support team on ticket 8736489. They’re walking through some troubleshooting steps with you, so you’re in great hands. I apologize for the delay—they are currently experiencing a higher volume of inquiries. I’ll also keep an eye on your ticket to make sure you’re fully taken care of.

Happy Shipping!

-Cara