Hi Rui,
I tried to clear empty accordions.
When i delete, 3 alert messages ( 2 ineffective ).
When all clear, after saving, 3 new blank accordions appear, then 6, then 9, then…
You can try on website on my page, simply delete blank accordion, and save.
On your test, you have only 1 instance accordion. I add 2. but you are true, i’m unable to replicate the issue.
Thank you,
Best