Azure storage - files do not show after upload

Hi, 

I’ve created a new Azure Storage. In IAM I’ve set the Storage name + KEY as credentials. 

They appear bold - I assume due to that they differ from the runtime config version from SF -. 
When I upload a file in my form (web gui); It shows no error and the path in the db is correct (https://NAME.file.core.windows.net:443/ff-uploads/)

But, there is no filename and it is not uploaded to the file storage. It’s in limbo sort of. 

What is causing this? And how to fix this.