Unable to debug on iPhone Xs

I'm seeing this pop up when trying to do Fast or Standard Debug (Developer Certificate and Developer Provisioning) via USB -- FB 4.7, both WIndows 7 and MAC 10.12.6 | AIR SDK 30 & 31:

!ENTRY com.adobe.flexbuilder.project 4 43 2018-11-02 19:39:24.385
!MESSAGE Error occurred while installing the application: Invalid <device> specified

The App simply won't install on the iPhone Xs. If I install the debug .ipa manually (via TestFairy or iTunes) - it does run on the device.  AD-Hoc and Production builds also install and run without issue.

So, the issue appears only to be when installing the App during a debug session.

This applies JUST to the iPhone Xs  --  the iPhone X and other iPhones work without issue.

Please vote here: Tracker