Copy link to clipboard
No option to flatten TIFF files in latest release (22.4). Even when the dialogue box comes up and warns that saving with layers will increase file size, the option to flatten is grayed out.Mac OS 11.3.1
Did you try the new command "File > Save a Copy"?
Save a Copy is new in 22.4. Details are here:
“Only supported files that maintain your work will be supported in the Save As command. If the file type you’d like to save isn’t an option, simply go to Save a Copy and create another version in your desired file type.”https://helpx.adobe.com/photoshop/using/whats-new/2021-4.html#save-a-copy ~ Jane
I understand but before you click Save you can deselect LAYERS
I think you know that, just saying just in case