Google home has disappeared from my smart apps, I’ve reconnected my Google home with St and now some of my St smart plugs aren’t working GH keeps just saying it’s having trouble with some light and switches, any idea how to get it to show in St as I think this would help! Thanks 
I went through some GH/ST issues in the past although it doesn’t sound like this is exactly the same I’ll ask the same questions that others asked me.
Are you sharing all devices in SmartThings with GH?
Do you have any custom devices handlers for the devices that are shared with GH?
I know that when I had both of the above items I had issues with the GH/ST working right and it only started working again when I shared devices selectively with GH from SmartThings.