I am trying to share a layer with someone from my ArcPro project. When I right click on the layer and go to "sharing", the option "share as layer package" is greyed out and unavailable for me to use. The only option within sharing that is available is "save as layer file." I'm not sure why this option is unavailable, as I have successfully shared layer packages from this project before, and am not sure how to proceed from here. Thank you.