Lightroom user script on macOS makes screen black only when launched with shortcut

[Xavier30169286dndl]

I have a very simple user script in Lightroom. It decreases exposure by 0.05.

local LrDevelopController = import "LrDevelopController"
local value = LrDevelopController.getValue("Exposure")
LrDevelopController.setValue("Exposure", value - 0.05)

When I call the script by clicking in the User script menu, it gets applied instantly.

In macOS "Settings > Keyboard > Keyboard Shortcut > App Shortcuts > Adobe Lightroom Classic", I setup a dedicated keyboard shortcut ("ctrl+opt+command+shift+E" but it could be anything). When I call the same user script via its shortcut in the Develop module, the photo (not the UI) goes black for more or less 1 second before being displayed with the adjustment.

Can you please help me fix this?

Machine:
Macbook M2 Pro

Sequoia 15.5 (but issue was already present months ago)

RAM 16Gb

Lightroom Classic 14.3.1 (but issue was already present months ago)

[johnrellis · Accepted solution]

I observe the same thing on my LR 14.4 / Mac OS 15.5.

Some experimentation shows that it's the use of Opt causing the problem. All these combinations cause the black screen:

Opt Ctrl Cmd Shift E

Opt Cmd Shift E

Opt Shift E

Opt E

But leaving off Opt, they don't black the screen, e.g. Ctrl Cmd Shift E.

I doubt that Adobe will acknowledge this as a bug, much less fix it. LR's handling of shortcuts, both built-in and applied by System Settings, is very fragile.

[Xavier30169286dndl]

Thank you very much, you are a life-saver! Very simple fix, but couldn't find it anywhere!