In the Preview screenshot above, could you retrace the history of that window? You created it by double-clicking a file in Finder? Or maybe you opened Preview and it restored this window from last time you quit it? Or maybe you restarted your computer and it restored Preview as well as this window since it was open before the restart? I'm trying to understand the exact scenario of how the window was created.
#Alttab macos windows
Do you have multiple Spaces? Do you move windows from one to another?
#Alttab macos code
This tab detection code has issues with fullscreen'ed windows, or general interactions with other Spaces (fullscreen windows are on dedicated Spaces actually). This is the same issue that's probably the root cause of #603. Reply to this email directly, view it on GitHubīased on what you said, that it's window-specific and not app-wide, and that it happens randomly, my best guess it's that it's the tab detection code triggering incorrectly. You are receiving this because you commented. "when you plug in anĮxternal monitor" I don't have an external monitor. I don't think so, it seems to be a random occurrence. "Does it happen in particular scenarios like when you start the computer" Preview and when A.pdf is disappearing from alt-tab, B.pdf could be still Also, this issue seems to happen to a particular Happened very often, it could be confusing and only close and re-open theĪpplication will help. This issue happened in Preview and Zoom so far. Issue doesn't happen on mine, and doesn't seem to happen to other people as Really hard to know what's wrong on your particular machine, since this What would really help is steps to reproduce the issue, otherwise it's Rarely? Does it happen in particular scenarios like when you start theĬomputer, when you plug in an external monitor, etc? I don't have an idea to reproduce the issue at the moment.ĭoes it happen with only Preview, or other apps? Does it happen often, "when you plug in an external monitor" I don't have an external monitor. "Does it happen in particular scenarios like when you start the computer" I don't think so, it seems to be a random occurrence. If I opened A.pdf and B.pdf with Preview and when A.pdf is disappearing from AltTab, B.pdf could be still shown on alt-tab and works normally. Also, this issue seems to happen to a particular window but not the whole application.
Though the issue does not happened very often, it could be confusing and only close and re-open the application will help. What would really help is steps to reproduce the issue, otherwise it's really hard to know what's wrong on your particular machine, since this issue doesn't happen on mine, and doesn't seem to happen to other people as far it seems. Does it happen with only Preview, or other apps? Does it happen often, rarely? Does it happen in particular scenarios like when you start the computer, when you plug in an external monitor, etc?
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