Duplicate custom field value on post grid

Hi, assign custom field to posts using ACF.
set read more to be dynamic with the custom field name
post grid show duplicate of the same value on all posts instead of the actual different values for each. (happen on several sites)

For instance
Post name | custom field value
Post 1, value 1
post 2. value 2
ost 3, value 3

Post grid shows:
post 1, value 1
post 2. value 1
post 3, value 1

Example page:
https://aimagegenerators.com/magazine/

Any ideas?
Thank you!