I am having the same issue,

The issue still persisted after:

• Cleaning Build / Solution

• Restarting VS

• Restarting PC

• Even the spamming box suggestion above haha

For my case in the ClickOnceProfile.pubxml it lists:

<PublishDir>bin\Debug\net8.0-windows\app.publish\</PublishDir>

When I go into the app.publish folder I see that none of the files were effected by running the new build.

I believe this may be linked to messing with the publish settings for me: specifying minimum versions stopped it from updating.

The Fix:

I renamed the folder app.publish to something else to change it back in case it got worse, though you can probably just delete this folder if you see your dll/exe modified date is not consistent with your last build/publish attempt.

This regenerated the app.publish folder and published as normal!