Survey123 Web Designer background image requirements?

[TL2]

When I try to add an image URL on an image field, image content or image background I get an Internal Server Error.  What are the requirements for adding a hosted image?  Why am I receiving this error?

[JoseBarrios1]

I just try with several url images and I'm NOT having any problems. I will check the size of the image, the type, and sign-out to refresh webapp (you may also try clearing the cache of the browser). 

JB