I've been experiencing some Bluetooth issues after installing yesterday's Security Update 2019-001 on High Sierra. Coincidentally the same ones that made me downgrade from 10.14 back to 10.13 a while ago.
This morning, when I woke up my 2017 5K iMac from sleep, all Bluetooth devices (Apple Magic keyboard, Logitech MX Master 2S mouse, Jabra PRO 9470 headset) were disconnected. I was unable to enter my password or move the mouse cursor and had to plugin a USB keyboard and mouse in order to login, disable Bluetooth from the menubar, re-enable it again, and reconnect my devices.
Ever since, the mouse cursor has been stuttering massively when moved across the screen, and it gets worse if another Bluetooth device such as my headset is in active use at the same time. What I have not yet experienced are the connectivity issues with my headset, so far that seems to be working well.
According to the release notes for said security update Apple fixed a few Bluetooth bugs in 10.14 and 10.13. I'm afraid that they might have backported the Bluetooth stack from 10.14 to 10.13 in order to streamline their bugfixing process for the future. All of my devices worked flawlessly with 10.13 until yesterday, and now all of a sudden they are acting up. This can't be a coincidence.
Did anyone else make similar observations with Bluetooth devices after installing the latest security update?
This morning, when I woke up my 2017 5K iMac from sleep, all Bluetooth devices (Apple Magic keyboard, Logitech MX Master 2S mouse, Jabra PRO 9470 headset) were disconnected. I was unable to enter my password or move the mouse cursor and had to plugin a USB keyboard and mouse in order to login, disable Bluetooth from the menubar, re-enable it again, and reconnect my devices.
Ever since, the mouse cursor has been stuttering massively when moved across the screen, and it gets worse if another Bluetooth device such as my headset is in active use at the same time. What I have not yet experienced are the connectivity issues with my headset, so far that seems to be working well.
According to the release notes for said security update Apple fixed a few Bluetooth bugs in 10.14 and 10.13. I'm afraid that they might have backported the Bluetooth stack from 10.14 to 10.13 in order to streamline their bugfixing process for the future. All of my devices worked flawlessly with 10.13 until yesterday, and now all of a sudden they are acting up. This can't be a coincidence.
Did anyone else make similar observations with Bluetooth devices after installing the latest security update?