ZIA - Azure Virtual Desktop Session drops during login

We are seeing an issue with users logging into Azure Virtual Desktop and as soon as the desktop is presented it freezes and reconnects after approx 10 seconds and i see in the background the zscaler window flash up and disappear very quickly as the user is presumably signed in. Its this signing in to ZIA that temp breaks the network connection and freezes the desktop. Is there a way to sort this without a network interruption, is anyone else seeing this behaviour?

This only happens when a user logs in, once logged in the session is fine until next time.
Zscaler Client Connector version is 3.4.0.124 and tunnel version is v2.0 - DTLS

thanks!