If ACF isn’t working for you, that’s fine. There are quite a few other custom field plugins out there which you may enjoy more.
Please however, take some time to do some simple debugging with ACF’s function
get_field and WP’s functions
get_postmeta to compare the differences.
You may find that the issue is not with the ACF plugin, but with the code you have written in your theme.
If you are not familiar with debugging, it is not as scary as it seems. It’s just comparing visual data by printing it out to look at. Please jump on google to see some basic examples of PHP debugging.
I can’t offer much help other than the above, and I hope that you do debug and find the issue soon.
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