WiFi.listen() blocks Serial1?

I’m using a nextion screen and trying to add a button to enable/disable listening mode.

Once I enable WiFi.listen() through a callback, the photon no longer communicates with the screen (uses Serial1). Anyone else see this happening? I’m starting to dig through the particle source to see if it’s turned off there.

Serial1.begin() is called as part of entering listening mode. We have an issue for this here - https://github.com/spark/firmware/issues/911