I'm working on a new site using the Pinboard theme. I used the Portfolio option for the first time today, and displaying in the post meta section of my portfolio posts is this: panels_data: a:0:{}
I Googled, and discovered this could be a custom fields issue. Sure enough, I do have a custom field called panels_data.
I have two plugins running on this site: Page Builder and Akismet. I tried deactivating Page Builder, with no change.
I also Googled "panels_data pinboard theme", and got hundreds of results---not for solutions to the problem, but listings of hundreds of sites that have the exact same error showing on their portfolio posts.
Any thoughts on a cause, or a solution to this issue?