This is what works for me:Load remote capture to your start up items in prefs.Restart computer without opening previous or ANY apps.Turn on your camera that is tethered. Once the remote window opens, you can open Bridge, ect.
Until Canon upgrades the software for remote shooting, I found this works for me with EOS 90d to OS 14:Make sure you have the latest EOS driver uploaded.In preferences, go to start up items and "+" the remote capture app.Restart the computer. DO NOT ...