I also wanted to get meta data values in a block, and after trying everything, and eventually opening a ticket about it, and the simple answer I got was “it is not possible”.
This should have been a hint, but I tried anyways: – https://www.advancedcustomfields.com/resources/blocks/
Under the heading “Anywhere and Everywhere”, it says that “ACF blocks are not tied to metadata…”. I knew this going in, but I had to “force” a solution, needless to say, it was a total fail.
