Woo Hoo, Home/Away is FIXED!!!!!!!
Steps:
Delete the Google Cam Indoor 2nd Generation Wired camera from the app.
Using a very small drill bit I inserted it into the small hole at the bottom of the camera and pressed and held the Factory Reset button for several seconds. I gave the camera a few minutes to reset.
On the Android phone go into Settings -> Apps and locate the Home app.
Tap Storage
At the bottom of the screen tap Clear cache and tap Clear data
Hit the Back key and tap Uninstall
Now, I had done all of this several times to no avail. But this time I did one more thing:
Reboot the phone
I opened the Home app and added the Google Camera Indoor 2nd Generation Wired back into the app and told it to use Presence Sensing for Home and Away as I had always done. I also setup the camera Notifications and other settings as desired.
Then I noticed the difference: In the Home app Settings section there was no selection for Presence Sensing and the Settings -> Privacy section also did not have a selection for Presence sensing
I thought "Well, now the Home app is really broken." but no, it wasn't. It was fixed!
At the top of the Favorites screen I tapped Home and I now had the option to set up Home and Away routines at the bottom of the screen! I had never seen those before.
I followed the prompts to simply accept all settings brought over from the Nest app for the cameras and now Automations shows both a Home and an Away under Household Routines!
Whew. 🙂 I'm guessing the reboot triggered a "clean up" process or similar.
Hopefully this will help someone else in the future. I suspect the problem is at least partially caused by the Home app and the Nest app interactions and account migration from a Nest account to a Google account. If so, as more people replace their DropCams with Google Cams others may go through the same frustration I did.
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TL:DR Version
Does anybody have any idea why I cannot add or see Home and Away Automation routines under Household? When I delete the two Household Routines I added I have no Household routines at all. Is that normal?
Or why manually switching from Home to Away turns on the two DropCam Pro interior cameras but will not turn the new 2nd Generation Google Home Inside on?
Or why the Home App thinks I'm Away in "Presence settings" when I'm not but it still will not turn the new camera on?
"Presence" seems to be setup correctly but seems totally disconnected from the app, perhaps due to the fact that the (supposedly default) Household Automations routines of Home and Away are missing.
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EDIT: Oct. 23, 2023 - Since the problem is now fixed I edited the initial post below to remove all of the troubleshooting steps I tried that were ineffective in order to to shorten the post. I left the symptoms in the post in case others experience the same ones and are searching for them.
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I'm in the process of replacing my DropCam Pro's with the Google Indoor Cam - Wired 2nd Generation cameras and that requires the use of the Google Home app. I've had the Nest app and a combination of cameras since my DropCam and Nest Thermostat use started before Google bought DropCam and Nest.
I figured out how to use an Automations -> Household Routine to turn the interior cameras on and of at certain times, the same way as I used the Nest app Schedule function. It works fine.
But I need the new interior cameras to turn on and off when I leave the house because we use it for the dog AND because the Nest Protect 2 smoke/CO detectors have not provided notifications for years (many people have reported this). So we rely on the interior cameras to "hear" the Nest Protect 2 devices talking and beeping. It works.
When I replaced my first camera with the Google Inside Camera 2nd Generation Wired a few days ago I told the camera setup process to turn on the camera when Presence said I was gone and off when I arrived (or whatever the exact wording was). Yet when I leave the home that new camera will not turn on.
But where people say they have a Home and Away Household Automations Routine I do not nor have I ever had one. I can delete the new camera, delete the "schedule" Household routines I added, whatever, and I never get a Home or Away routines in Automations -> Household.
When I check Settings -> Privacy -> Presence sensing everything is turned on BUT the app thinks my Samsung Galaxy S22 is Away even though I'm home. I can set it to Home in Settings -> Presence Sensing and it sometimes turns it back to Away within a few minutes. The new camera still does not turn on even though Presence says I'm Away.
Even though the Home app Presence Sensing says I'm Away NONE of the interior cameras turn on. But the other two DropCam Pro's WILL turn on if I MANUALLY select Away. It's acting like the Home app Presence Sensing is completely disconnected from the devices. This may be happening because I have no Home and Away routines under Automations -> Household so there is nothing for the Presence Sensing to trigger.
The Home app Permissions is set to allow it to use Location and Use Precise Location to "Allow all the time".
When I manually change Home to Away at the top of the app screen the other two DropCam Pros DO turn on but the new Basement camera does not.
