@michaelpg: Can you reproduce on ToT? I was not able to.

Oh I see you already mentioned you could not, never mind.

@michaelpg: Could you check if there are any errors in your devtools? Sounds likely given the behavior you are seeing.

No, the only error was a renderer-not-found error after clicking on an inspect link for a frame in a disabled extension, which is expected.

I signed in to another account (with multiprofile, so it's the same session) -- and I can't reproduce in the other account.

Perhaps it's related to enterprise enrollment, since it's my @google.com account that has the problem? Or just something to do with the particular apps and extensions I have?

Also: Removing an extension from the main page doesn't result in the extension card being removed, even without any of the filtering steps. So the UI is more broken than I initially thought, definitely worth figuring out how to repro.

(unassigning myself in case someone else can get to this sooner)

@michaelpg: This bug is not very actionable without a repro. My understanding is that

 1) you were able to repro only on M64 with your corp account.
 2) you did not try M65 with corp account.
 3) you did try M65 with other accounts and was not able to repro.
 4) Did you try M64 with other accounts?

> Removing an extension from the main page doesn't result in the extension card being removed

Does any of the symptoms happen without the MD Extensions flag. Asknig just to rule out the possibility of the extensions backend mis-behaving on that profile.

It might not be a UI issue. A listener for chrome.developerPrivate.onProfileStateChanged is not getting fired even though toggling developer mode does actually take effect. I can check for other events or APIs if there's something that would be helpful to look for.

I tried this in chrome://extensions from my corp account:
    chrome.developerPrivate.onProfileStateChanged.addListener(
      console.log.bind(console))
and toggling dev mode doesn't trigger any logging. It does trigger the expected event when using my non-corp account.

#9: Correct. I tried on M64 with a non-corp account and couldn't repro. I'm in Australia so not keen to test this out over Remote Desktop in different configurations, and can't do anything on-device beyond what I can do with my corp-enrolled Chromebook.

Not happening after a reboot. I'll look out for it to happen again.

Given this happened intermittently on only a single profile/machine, I'm tentatively lowering priority and removing it as a blocker for enabling on ToT.

Michael, if you see this again, please do bump priority back up! :)

Lack of repro, only happened once. Please reopen if needed.