Doh! Looks like in troubleshooting I had actually changed the return value from “ID” to “URL”. All is working now (with moving the code as you suggested, which I had tried before, but after having changed the return value and forgetting).
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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