I just want to make sure, so the issue disappeared when you changed the theme and deactivated other plugins? If it was, then there’s a conflict between ACF and your theme or other plugins. Could you please activate the theme and plugins one by one to see which one causes the issue?
Doing that will help us know which one that has the issue and we can focus on that alone. I suspect there’s something wrong with the Advanced Custom Fields: Image Crop Add-on, but I’m not sure yet. Could you please do the basic test I mentioned before?
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