Could you please tell me what’s the result for this code:
echo "<pre>"; var_dump($lulus); echo "</pre>";
When you used it for both:
'value' => array('Lulu\'s Lounge')
'value' => "Lulu's Lounge"
It seems that you used a very customized PHP code. In this case, we need to debug the returned data/variables one by one to see which part that has the issue. This page should give you more idea about it: https://www.advancedcustomfields.com/resources/debug/.
Also, if the issue is related to Date and Time Picker add-on, I’m afraid I can’t help you because it’s not officially made by ACF. In this case, you need to ask the plugin author here: https://wordpress.org/support/plugin/acf-field-date-time-picker. ACF PRO now has the new Date Time Picker field included as default, though.
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