Well, this is why I always wait a week or so to install significant updates, until all the bugs get worked out and the patches get launched.?
Of course, my issue could be unique to my hardware for some reason, but just a heads up if you are running an external display(s).?
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On an M-chipped MacBook Air I upgraded today from Sequoia v15.4.1 to v15.5. Connected to the MBA via USB-C is an LG 5k external display, with spaces and two displays configured and stable in system settings prior to the upgrade.?
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After running the upgrade the external display did was not recognized at all, and all of the open apps, spaces, windows, all ended up jumbled on the MBA with the external display dead. Having experienced various oddities over the decades I knew the first thing to try was simply hands-off and shut down. Then after the first restart, at least now the external display was recognized and somewhat functional, however it took quite some time to figure out where some of the spaces, apps, and windows had disappeared to.?
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After more reboots, and troubleshooting I discovered some of the apps were somehow "off" of the current screen (space) and were revealed when I used the F3 key, which may vary from model to model, but normally shows you everything within a space or a display that's either covered up or totally off the screen entirely. Even stranger was when the "missing" apps appeared with the F3 key, even when I dragged them back into a space they flew off again. I finally figured out that I needed to "quit" the lost app and relaunch it into a "fresh" space. That worked.?
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Sorry, if I'm not being clear, or if you don't use spaces, etc. but just a heads up that if you are using external displays to be ready for some troubleshooting.?
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John
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John