Unable to connect to IOS device (IOS 14, Xcode 12.3) using latest WDA from repo

**Describe the bug**

I have WebDriverAgent running,
:8100/status shows that the device is connected,
iproxy 8100 reports 'Requesting connection to USB device handle'

But when I press connect in Airtest IDE, nothing shows up.

**To Reproduce**
Steps to reproduce the behaviour:
1. Take a pull from https://github.com/appium/WebDriverAgent
2. Run UITestingUITests.m test on device
3. Verify using IP:8100
4. Try connecting to device in Airtest IDE

**Expected behaviour**
Device window opens up in Airtest IDE

**AirtestIDE version:** `1.2.6`

**Platform:** `MAC 10.15.7 .`

**Smartphone (please complete the following information):**
- Device: iPad Pro 11inch
- OS: iOS 14.3