I used sling:resourceType - granite/ui/components/coral/foundation/form/datepickerandminDate - todaytype - datetime please see screen shot for all properties, this is working for me  date field will take the system date and timezone

Did you check this https://experienceleague.adobe.com/docs/experience-manager-65/administering/security/enabling-crxde-lite.html?lang=en#enabling-crxde-lite-in-aem https://blogs.perficient.com/2020/06/16/how-to-easily-access-crx-de-on-adobe-ams-after-aem-6-5-5-upgrade/

Do you see any errors in logs or browser console error?

AEM is Java Based Web Application AEM Developer should have knowledge on the following Technology Stack1) Java2) HTML 3) CSS4) Java Script5) HTL6) JQuery AEM Developer should understand the AEM Technology Stack1) Sling2) OSGi3) JCR API Please go through All getting started Adobe documentation and WK...

Check your Page Template Policy allowed components. For Editable Template. 

if you want to query under /conf, then you can add a condition with Resource Type isResourceType("dam/cfm/models/console/components/data/entity/default") Check the Content Fragment model properties (ResourceType and ResourceSuper Type)

you can check this https://labs.tadigital.com/index.php/2018/11/29/aem-integration-with-mysql/ 

our dropdownshowhide.js in footerlibs

I am using like this in 6.5 and working fine for me /*==events==*/$(document).on("foundation-contentloaded",function(){$(document).on("change", callTypeCls, function () {hideShowCtaBtn();});$(document).on("dialog-ready", function () {hideShowCtaBtn();});});

Did you check SDI Sling Dynamic  changes in AEM 6.3 vs AEM 6.5 CDN caching strategy and How your CDN ESI processor process the tag and request to AEM Server.