Attached is the export of the simplified field group used on my demo site, it may help in recreating the error. Fairly straightforward. Not sure if the problem can be recreated in a simpler field group, like without using the flexible content field?
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ACF wouldn’t be so widely used in WordPress if it didn’t have some pretty amazing capabilities. In this article, we look at a few of the features we’ll discuss during “7 things you didn’t know you could do with ACF” at #WPEDecode later this month. https://t.co/5lnsTxp81jpic.twitter.com/Yf0ThPG1QG