I’m getting a “The column could not be loaded because of an unknown error” error when trying to add a new ACF based Admin column for one of my custom post types that uses ACF.

I have 2 other custom post types that use ACF, and I’m able to customize/add the ACF columns without any issue. It’s only this one that has an issue.

I have Admin Columns Pro Version 5.3.2 with Admin Columns Pro – Advanced Custom Fields (ACF) Version 2.6.3 installed.

I’d appreciate it if support could take a look into it. Thank you!