I waited until today to update from Cubase 11.0.0 to 11.0.3. After the update C11 launched & ran fine. Then I later double-clicked on a CPR file and instead of opening in 11 it opened in Cubase 9.5. I figured Windows had lost the file extension association as sometimes happens. So I right-clicked on the CPR file and used “Open with…” to manually select Cubase 11 (which oddly is what Windows thought the association was). But even then it launched 9.5 to my surprise.
Next I used “Open with…” to specifically select the Cubase11.exe - which again opened the Project with 9.5. If I launch Cubase11.exe directly from Explorer it opens 11 as expected. But I can’t figure out how to change the file associations. It also seems super odd it went back to 9.5
This got way stranger.
I found I could select Cubase 8 to open the Project and 8 opened it fine, Cubase 10 too. Tried choosing Cubase 11 and again got 9.5.
So I figured I’d break 9.5 by renaming its folder. But then when I double clicked the CPR file I got the biggest surprise - it started trying to install Cubase 9.5 - what??? I declined the offer.