Lightroom Keyboard shortcut 'L' no longer working
Hello all. I am working on a project using the most up-to-date version of Lightroom (v.8.1) and all of a sudden the L keyboard shortcut for 'Lights Out' mode is no longer working. It was working fine earlier today, so I don't think it has anything to do with the version I am using. I have reset the preferences, but still the same. Could very possibly be that I am overlooking something really simple, but I am going mad here trying to work this out.
Thanks in advance.