Seems like possibly the data is out of sync between polite and non-polite pools? I don’t know if that’s possible with your backend setup, but a user report from using habanero suggest it is possible
We’re aware of the two pools getting out of sync. Our technical team has been working on a fix for several weeks. We have a few Jira tickets in about it, so you can see the different flavors of problems: [CR-1531] - Jira , [CR-715] - Jira , and [CR-1558] - Jira.
I wanted to follow up on your message to us from February to let you know that we have removed the ASJC subject codes from our REST API. We’re no longer asserting subject areas/codes for journals/journal articles.