Broken: Universal Control Keyboard Mouse Sharing OS Sequoia 15.0

I agree with @TCC Bob.....I updated both the MM and the MBP to Sequoia 15.1, then restarted both machines, then turned on the sharing of keyboard and mouse.

It appeared to be working fairly well most of day. However, I still experience intermittend "drops" and "freezes", where the mouse AND keyboard control seem to be frozen, and stuck between the two machines.

I have been able to get the universal control back by using the MBP's touchpad and keyboard, then toggle and hit esc on one or both machines. So far, that has "unstuck" the keyboard and mouse when that has happened (which originally this approach was not working).

Therefore, with Sequoia 15.1 updates and restarts, things have definitely improved. The function is not flawless.

For Apple, having this function achieving only a "functional and intermittently annoying standard" still leaves room for improvement.

I continue to have UC problems, and I have determined it breaks in the same way each time.

• My MM is the "primary" computer, with the Apple keyboard and mouse initially paired here.
• The MBP is the secondary computer
• UC may work for 10-15-20 minutes, but at some point things freeze.
• The only solution is that I must use the MBP touch pad to find open Systems Settings/Displays on the MBP.
• The UC keyboard and mouse are frozen for both machines.
• On the MBP, once I open Display settings, I first see only the only the main display, but then the UC seems to reestablish itself, and then you see the two machines and their display arrangement.
• Once the MBP is showing UC and both displays, I am then able to begin using the keyboard and mouse across both machines.
• As mentioned, UC may then work for many minutes, but never longer than perhaps 20 minutes or so, and then I must repeat the process above.
• If I did not have the track pad available on the MBP, it might leave me up the proverbial creek, forcing hard restarts in either/both machines.

This continues to be a broken function.

Yes, I have done what many of done, such as signing out of iCloud on both machines, making sure both are fully updated, both even on the very same WiFi, etc.

This is a real PITA, and very unacceptable. Apple have not said my 2018 MM or my 2021 MBP are "too old" and unsupported, so I expect this to work in a seamless manner.

Apple is failing with the UC at this time.

Well, UC mostly was working, but I just experienced another lock-up, where I had to use the MBP touch pad to move the cursor around, open Settings, and get to Displays. Once I did that, the UC sharing reestablished with the MM, and then I can continue to use the UC with the shared mouse and keyboard, between the MM and MBP.

Yesterday morning, I turned off UC on both the MBP and MM. I then logged out of iCloud/AppleID on both machines. After restarting both machines, and I had log back into iCloud/AppleID, then I went back into Settings/Displays to reactivate UC.

Yes, many days ago I had already update both machines the Sequoia 15.1.

It is working, but I have still experienced intermittent locking up, requiring me to open Settings/Displays to re-establish UC.

Better, but still not happy.

Stolas6...thanks so much for letting this thread know you called into Apple Support.

Since the upgrade to Sequoia 15.1, and restarts and toggling on/off of the universal control function, I have still encountered intermittent lock-ups.

One situation where the lock-up has been happening is when I may have my MBP in fullscreen, with my main MM in regular desktop viewing mode. I have found the mouse and keyboard will sometimes (no always) lock-up in this situation. The menu bar at the top of my MM will show my split/share icon for universal control, while the MBP's menu bar does not. This is one situation where I have needed to use the MBP trackpad to find the pointer, then go to Settings Settings, then Displays, and to ensure that keyboard/mouse sharing is on.

I may have to do this on the MM as well, even though the universal control icon in the Menu bar is showing it is active.

Over the last few days, I continue to encounter this situation (even without either computer in full screen mode), perhaps once per hour. It is quite the annoyance having to go through extra steps and toggles on/off.

Since Sequoia 15.1, the "reactivation" has been easier than before. However, it is still problematic.

Thanks