Background
When using the Attach PDF using template automation, you define the file name. However, this is not used in Fibery as the Tab title.
As seen in the screenshot, I can define both the file name and the HTML title tag in the PDF templet. [Side Note] It is difficult to reference the Generated File name, so I created a workaround by defining the would-be-generated title in another field.
The Issue
The tab in Fibery displays gibberish. Or more likely some URL reference ID to the stored document. This can also be seen in the screenshot as it is the 2nd tab.
When downloading the file and opening it in a browser the title tag works perfectly, so this issue is only with the Fibery Tab which should be the File name.