After upgrading to 15.6.4 yesterday, I received a message at top of screen. Don;t remember exact text, but it was something like "VS is being delayed due to ???. Something about mono debugging". Click button to disable. Sorry, that the best I can remember. I clicked.
Since doing so, I can no longer debug my app. I re-enabled debug on the IOS properties page, but when I hit f5 to debug, it does the build, but doesn't deploy to phone or simulator. What else must I enable?