I just installed the SW16 update and when I rebooted my phone both of my carrier names on the lockscreen came up as “T-MOBILE”. I have US Mobile for SIM1 and Ting for SIM2. I tried changing the SIM card names manually in the Network & Internet settings but they both still show up as T-Mobile.
(Carrier names on the top-left)
Anyone else seen this bug? Any help would be greatly appreciated. Thanks!