The difference I see from the first URL you gave and the 2nd is that on the second you are using two backslashes instead of one. Which should never be the case actually in URL structure and I’m not sure what you mean by this is what is supported from the image component?
I connected the external collection via API (Wordpress API)
The problem is when I connected the image URL to the image component (Under list) the URL which comes in this format -
And its not accepting the URL but when I paste the same format in URL bar & then paste it to image component, it works
Here is the screenshot for testing I created it (Observe the URL)
It is very strange that the API is sending data formatted like that. What is the Content-Type set to for this API? (It should be defined in the Header -H)