We have the exact same issue on all of our clients WordPress solutions (50+ sites).
We have build a sitebuilder with flex fields and repeaters in ACF however we are no longer able to delete those, removing your plugin fixes the issue, so sadly I think the culprit might be in your plugin :/ (even though it’s a great plugin thanks)
Here is a dump of our JS console: https://snag.gy/Fzt3Zj.jpg
Left you a little present in reviews 🙂
Thank you! It worked like a charm! 🙂
