I had to re-save some of my blocks custom fields in the custom field editor. I don’t really know why some of them needed this while others didn’t, but this solved the issue that appears to be the same one you’re seeing.
2022 was a big year for Advanced Custom Fields, with more capabilities, a new generation of ACF Blocks, a refreshed UI, and a new home. Our year in review post looks at advancements we’ve made and offers a glimpse of the future. https://t.co/HahJUCcyH4