Why appium uninstall WebDriverAgent on device

Appium desktop 1.0.0, Xcode 8.2, ios 10.1, Mac OS ElCapitan

Why appium uninstall WebDriverAgen on device for each time start test. Is there a way to install the WebDriverAgen once and do not uninstall it over and over?

Did you get any solution? I am also looking for this workaround.

unfortunately no. Still searching

set capability useNewWDA to false

Default is False only and Its not working.