So if you go to a page/post and try to add a link using the file you added, can you see it within Filebase and if so, can you add it to the page/post and access it without issues? I normally don’t click on the “View File Page”, but when I did that on my system the link simply opens up a post with the default viewer.

My url is the same as yours, but without “blog”.

Do you have a cache plugin that could be causing the delay?
Chris