chrome remote desktop connection disconnected immdiately

Question

I installed chrome remote desktop in Ubuntu 18.04.

First issue, I can't add a new device which solved by:

Can't set up remote access on chrome remote desktop

The current issue, the connection is always disconnected when trying to connect from other devices.

When login ( enter the pin code ), it will show a session selection screen. Whatever I choose, both get an end connection immediately.

The options are:

1. (default) Launch the default XSession.
2. Ubuntu This session logs you into Ubuntu.

PS.

1. The pin code is correct.
2. If I use Remote Support function which generated the one-time connection code, it works normally.

Answer 1

The user needs to log out first in the local machine.