Devices have disappeared and I cannot add them again.

[SonnyTheMoney]

I am having an issue recently. I have many Samsung devices and all were in my smart things account. I use an S22 Ultra, Galaxy Watch, 2 SmartTag 2's, Tab S5e, Note 9 and about 6 smart lights. Recently my Tab S5e and Note 9 disappeared from my Smartthings app and cannot seem to be readded. However ON the Tab and Note 9, all the other devices are visible and connected as well as able to be accurately located. The Tab and Note don't even see themselves on the same device. I have tried to search for new devices but cannot locate them even when side by side. 

I have done all updates on all devices everything is up to date. All devices are signed into the same Samsung account. 

Any help is greatly appreciated. 

~Sonny 

[RedDogRabbit]

Yeah it seems like something weird is going with Smart Things. A week ago I could see both my phones on either device's Smart Things app. 

Now on my S20 Ultra, I only see the S23 Ultra, and on my S23 Ultra, I only see it, not my S20 Ultra.. 🙄

Weirder still I can still see my Non Samsung, Non officially supported Personal Devices on both the S20 Ultra & S23 Ultra... 

[SonnyTheMoney]

I am wondering if this was related to my S22 Ultra recently updating to One U.I 6.0. Or a bad update to SmartThings itself.

[RedDogRabbit]

I'm not sure, but I know that security / privacy with One UI V6.0 has really increased. So you may be right about the issue stemming from the One UI V6.0 update.. But if Security & Privacy were the issue, it still doesn't really make sense, because the S23 Ultra One UI V6.0 is visible on both devices, but the S20 Ultra One UI V5.1 isn't visible anywhere 🤷🏼

I've been casually looking around to see if there's some additional permissions that need to be granted.. but nothing so far 🤔