I had a very simple updateable BAQ that was deployed to a dashboard prior to the Kinetic upgrade. After the upgrade I can no longer update the date on sales orders in the dashboard (I did try redeploying), it does appear to be updateable in the query if I doubleclick the field. I am not sure what I am missing. I am happy to provide any additional information necessary.
If you are not in classic view for BAQ, that could be the issue. Updatable BAQs only work in classic mode with the new version of Kinetic. If you change from Kinetic view to Classic, it should work.