Alt+l does not open menu (holding shift does)

Windows 7 64-bit - Audacity 2.2.0-beta-Sep 1 2017 - .exe-installer

For some reason i can use Alt+l to open a menu.
If i hold shift at the same time it opens.

#. i18n-hint: Ext-Bar is a menu with extra commands from tool bars
#: src/Menus.cpp:1265
msgid "Ext-&Bar"
msgstr "Ekstra&linje"