This conversation has been merged. Please reference the main conversation: Lightroom: Keyboard shortcuts for Copy Metadata and Copy Settings doesn't always work
I do a lot of stacks, and for some bloody reason, applying a metadata modification is only applied to the topmost picture of a stack, not to the entire stack. So after tagging/labelling/culling, I have to do a LOT of Ctrl+Alt+Shift+C on the topmost pictures, and then Ctrl+Alt+Shift+V on the rest in the stacks. One by bloody one.
But sometimes, the Ctrl+Alt+Shift+Cdialogue doesn't copy the selected metadata, but just clears the clipboard. As if the selected metadata was empty, but it isn't. This causes me to "miss" a couple of pictures. So after the fact I have to go through them again (as if once wasn't enough) and check them.
To repro: just go through an afternoon with me. Get a LOAD of pictures in stacks, and copy metadata from topmost pictures into underlying pictures like above. Even with ONLY "keywords" selected in the copy metadata dialogue, the clipboard will sometimes end up empty after it. And yes of course those pictures do have keywords. ALL my pictures have keywords, so copying them and ending up with an empty clipboard is (should be) impossible. The problem seems to happen more oftenly when I'm working particularly quickly. So do it like Ctrl+Alt+Shift+C and *immediately* hit Enter, even before the dialogue shows up. This'll make is easier to trigger the problem I'm sure.
Especially after the memory leak bug that's still in Lightroom, this problem will get worse, as Lightroom gets slower and slower.
This is on Lightroom 6.5.1 on Windows 10.