Guys, 

On all my browsers i tried: Edge, Edge dev channel, Firefox and Chrome latest versions the attachment preview is not working...

I even tried across a few different PC's now... it is not working as intended: i don't get a preview from PDF's, from Word-documents (doc and docx) and Excel on nothing.

My personal opinion: this has to work and show a preview, or else i have to do one more click to download the file, whereas before i immediately got a downloaded file, or it immediately opened, depending on the browser used. 

PS: are there plans to improve or refresh the UI further?

With regards,

Sven