Hello!
I have the problem that, when I restart Home Assistant and someone uses the Google Home App at the same time, all devices are getting removed. After the restart is finished all devices appear again, but the Actions i have in the Routines in the Google Home App for the devices are gone and so i have to redo all the Routines again.
I followed the Documentation for the connection.
This is my configuration for google_assistant:
project_id: home-assistant-15367
service_account: !include service_account.json
report_state: true
expose_by_default: false
entity_config: !include_dir_merge_named google_assistant/
The entitiy_config which is included are some files structured like this:
camera.cam_hd_stream:
name: Cam
room: Living Room
switch.pc:
name: PC
room: Living Room
I couldn’t find anything which relates to this problem. So it will be appreciated if someone can help me. 
Just ask if you need more information.