If you upload a plugin to a group, when trying to change the sales status (whether it is for sale or not), you see the error “failed to update price”. I have verified this is the case with two different groups, one in which I am the owner, and another where I am in a role where I have permission to edit group assets and sales.
I cannot edit the sales of either of these plugins:
However, I did find that I can edit the sales of plugins that I upload to my profile, not to a group.
I can edit the sales of this plugin, which is published to my account:
Having exactly the same issue with my group plugins still (Feb 2021, 3 months later). The plugins in question are not meant to be public, and people are downloading them, and I have no way of stopping it.