Cannot see device in Flash Builder when using 33.1

I am using Flash Builder to update an Air app using the Harman release - Version 33.1.1.86

Using an older Air 32 release I can deploy a debug version to my iOS devices via Flash Builder.

However, when I swap out the SDK to Harman's latest, Flash Builder cannot see any device connected. This is true regardless of the version of iOS installed.

Xcode can see the devices fine.

I'm running Mojave still.

Any ideas?! Thanks.