i'm using LR 9.3 (in italian) and i'm trying to apply a watermark to an image.
I've created a new watermark (filigrana in italian) named 'MT' for example. I see it in editor but when i try to insert it in image during the export process i can't select a watermark because the function is unaivalable (i see it on my screen but is unusable.
The only reason I can think of right now (although there may be other reasons) is that you have set Lightroom Classic's export dialog box to Image Format equals Original or DNG. You can't add a watermark in that case. If you set the Image Format to TIF or JPG, then you can add a watermark.