Accessing the Help menu blocks all further input to the app it was called from

Number:rdar://39374865 Date Originated:2018-04-12
Status:Duplicate of 39501568 Resolved:
Product:macOS + SDK Product Version:10.13.4 (17E199)
Classification:Serious Bug Reproducible:Always
Menu Bar


On High Sierra, the "Help" main menu takes away key status of the app's windows and does not give it back.

Steps to Reproduce:

- Opening the "Help" menu by clicking on the main menu item
- Hover out of the shown submenu to the bottom, do not exit it by hovering over another main menu item

Expected Results:

As on Sierra, everything in the app is back to normal and you can continue work.

Actual Results:

Hit any key; the currently active app does not accept key events anymore. Clicking into text fields works, but you cannot use the keyboard.

Cmd-tab out and back into the app again (to redraw the window) and you will notice it now is drawn as if it was inactive. 

So something else has key status, probably something from the help menu.

Key status can be obtained back by opening the Help menu again but then hover over an adjacent main menu item, e.g. "Window". This will work. Probably closes the "Search" item in the help for good.


macOS 10.13.4 (17E199)


This is a quick-fix:

func menuDidClose(_ menu: NSMenu) {
    if menu.title == "Help" {
By christian.tietze at April 12, 2018, 11:25 a.m. (reply...)

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