Custom keybaord shortcuts

Is it only me or the custom keyboard shortcuts are completely broken / ignored in 2.80 (2.80 (sub 57), branch: master, commit date: 2019-04-16 20:13, hash: 5d8030b8f3cf, type: Release build date: 16/04/2019, 17:08 platform: Windows). It does not matter whether I go through the following


or if I go with the preferences panel like this

It has no effect what so ever. Am I doing something wrong?