Known Issues - Windows 10 Insider Mobile Preview Build 14367
We are investigating data issues with some Dual-SIM devices where cellular data doesn’t work correctly with a second SIM. Several issues relating to cellular data with Dual-SIM devices have been reported by Insiders with the last two Mobile builds and we’re investigating these reports. Thank you for giving us this feedback.
There is an issue where certain apps won’t be able to set Start or Lock screen backgrounds.