Google Pixel: March security patch affects wireless charging
Some people using third-party wireless chargers are getting the message “align phone to charge” and they can’t proceed any further. Users have tried to reboot their devices or to completely reinstall Android, restoring the device to its factory settings -- but none of these lead to a positive outcome. The only method which seems to have worked is downgrading the to the previous February version of the security patch. Logically, this could mean that the problem is on the software side -- and indeed caused by the March security patch.
It is understood from the reports that the functionality of the devices with the Pixel Stand is not compromised by the security update. It only causes the phones to stop charging with third-party wireless chargers. Furthermore, some customers are stating that their third-party chargers work while the phones are switched off. Whatever is causing these issues, Google needs to address them sooner rather than later, or at least that is what all the Pixel devices owners are hoping for.