I'm not quite sure whether it's a beta grid issue or not, because I didn't see anything in the release notes about this issue.
Using "About Land" from the mouseover pie menu, does not return the land info of that parcel, instead returns the data of the current plot where the avatar is standing, much like selecting "About Land" from the interface menu.
This can lead to several problems. One such issue would be where land is set for sale and has restricted access, whether to specific avatars or a group. Because a person cannot access the plot, it's not possible to buy it.