I suppose NegativeLabHotkey.exe should be working for NLP in Lightroom only? But it apparently also works when Photoshop is running, causing some PS hotkeys to fail (such as fill hotkey Shift+F5).
Not a serious bug but mildly annoying if the user does not realize what’s going on.
What version are you on?
That should have been fixed as of v2.4.2…
I am using 2.4.2.
Maybe it’s Photoshop? My PS is 2020, not the latest version.
I solved the problem by disabling the NegativeLabHotkey.exe in startup and manually running it before using Lightroom. Since I only need to convert negatives once in several days, this is quite workable.