Download in cb content module shows blank page

I have some downloadfields that I show in a cb content module with: cb_downloads is a query field that gets the available downloads from the database.
This is working fine. But, somewhere in the update process, something has changed. When clicking on a download link download is either opened or presented with a popup (all fine), but site shows a new tab with a blank page with this url: where "informatie" is the name of the menu-item used to show the user profile. This is very confusing for users.

I am sure this is not the way it used to be. Please be so kind as to check this.

Extra info: just tested with published download tab and result is the same. So it has nothing to do with cb content module.

The download URLs for filefields go to com_comprofiler so yes it will have the menu-alias of your CB profile menu item and is normal. The URL should download the file or open it depending on the type unless you've set the field to force download. Does using the file field normally from profile work fine?

No it shows a white page with that url as well. (I already edited my first post).
It's an extra tab that opens. Download functions ok. Either open or download depending on file extension.

So you're using a query field to query for every users file fields and output them as a list or something of the sort? If that's the case be sure their URL structure is as follows.

index.php?option=com_comprofiler&view=fieldclass&field=FIELD_NAME&function=download&user=USER_ID&reason=profile

Then be sure you've target="_blank" on the "a" element.

As stated earlier, this occurs also when downloading directly from profile page.
Created tab Downloads and added file field.
[REMOVED]

It's a PDF so it will attempt to open, works perfectly fine in my tests. I'm guessing you don't have acrobat reader installed and can't view PDF files in your browser. In that case it's probably just going to be a white page. Don't think you need acrobat reader installed for Chrome or Firefox though, but can't recall when I didn't have it installed. If you don't want files to attempt to open and to always download then set "Force Download" to "Enable" in your file field.