Hm, ok, I found a solution in completely turning of wptexturize sitewide with:
add_filter( 'run_wptexturize', '__return_false' );
which works but seems a bit heavy handed. In trying to find a way to target the WYSIWYG sub-field more precisely, I found this thread:
https://support.advancedcustomfields.com/forums/topic/remove-wysiwyg-wptexturize-filter/
Which suggests:
remove_filter ('acf_the_content', 'wptexturize');
Which isn’t working for me, I assume potentially because it is a repeater/subfield?
I’m also actually accessing the repeater by simply getting the entire repeater as a variable and accessing the text directly via the array, so I’m even more confused that the text is being filtered. (get_sub_field or the_sub_field result in the same curly quotes, however)
