I see! Something happened a bit ago that I have never seen before on my prev device. It said that my device stopped charging due to heat. I don’t check my bat in the battery center daily so idk if that ever happened on my old one
That safety feature has been there for a long time. I’ve experienced many hot SoCal summers with broken AC so I’ve seen that message every now and then.
Remove the iPad from the case if there’s any and charge it vertically (e.g. on a stand) so it gets more airflow.