Dock disappears randomly on macOS Tahoe 26.0

KethSelhan1986 wrote:

Update:

In my case the issue is specifically triggered by the screensaver.

After waking from screensaver the Dock disappears.

As a temporary workaround I disabled the screensaver, and since then the Dock has remained stable.

Hope this helps others until Apple fixes it.

" After waking from screensaver the Dock disappears. : Does not happen only any of the tree machine I own and Operate

To reiterate " What is occurring, on you machine, seems by all accounts, to be localized and unique to your computer "

I have the same issue on my Mac Mini M4. My solution is to toggle Settings/Desktop & Dock/Automatically hide and show the Dock

I've reported this bug as well. It's related to the screen saver. I've tried to understand what makes it trigger. Because sometimes when you try to enter computer when screen saver is active, it shows desktop then pops right back into screen saver... now that's one bug, and the other is that it "wakes up" twice.. real quick, the display goes black two times and the dock disappears, and you have to turn on / off dock auto-hide in the system pref to restore it.

One **** of an annoying bug that needs to be fixed asap because it's also effecting my Studio Display because I think it turns itself on/off real fast when this happens.

I got this issue right after update. Switching toggle to disable/enable auto hide fixed the issue.

KethSelhan1986 wrote:

I’ve already reported this bug to Apple via the official macOS feedback form, but I wanted to share it here in case others are experiencing the same issue — and also to provide this quick workaround until Apple releases a fix.

Has anyone else run into this?

1 M2 Desktop, 1 M4 Desktop and 1 M4 Laptop all upgraded from Sequoia 15.6.1 to MacOS 26.0 Tahoe

Starting with second statement first

No Disappear Dock(s)

Yes, the dock will disappear if applications are put in Full Screen Mode

Mouse over bottom where the Dock should be - it pops up as expected

First statement

Based upon personal experience on 3 machines plus those of my colleague @ neuroanatomist

What is occurring, on you machine, seems by all accounts to be localized and unique to your computer

Installed Tahoe within an hour of release, have not seen this issue on my 16" M4 Pro MBP (have used the internal display alone or with an extended 5K:2K display, but mostly used in clamshell mode).