*** No longer supported *** [RELEASE] My Next Manager for your Nest® products: migrated to custom capabilities (home/away, motion, presence, and more)!

Hi, the only workaround that I know is to do the reset as follows:

https://thingsthataresmart.wiki/index.php?title=My_NextServiceMgr#Issue_.2315:_My_Nest_Tstat_doesn.27t_show_up_in_MyNextManager.27s_list_of_devices

BTW, the reset option is also used for the ST stock integration (not specific to my custom integration), and there are additional workarounds under the following ST community thread: