This is the oddest issue I may have ever had.
Last week I was going to edit a Word doc in Wrike and clicked on the "pencil" icon. Instead of opening Word (which it had done for ages, even since I downloaded that add-on), it gave me a message that I had to download the add-on. OK, I thought, maybe it was an update. I downloaded it but nothing changed -- in fact, I kept getting the question about downloading the add-on.
I was going to report it to Wrike but yesterday I was in the office (I had been working from home) and showed the issue to a colleague. Much to my surprise, it worked fine.
So I'm back working from home today and ... the old issue is back. (I have screenshots of the message and my download folder, which shows 4 different uploads of the add-on.) Any idea why this is happening? The only difference I can think of is that the wi-fi is different, but that shouldn't matter ... should it?