After copying the yaml file in https://codebeautify.org/yaml-validator found 2 issues at line no 11(add space) and 32 (remove space) after correcting that the yaml file is validated properly.     

Hi, Check this post might be helpful https://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager-forms/publishing-error-failed-to-retrieve-references-for-selected/td-p/213854 

Hi,See if there is any syntax errors in the file. yaml file will throw error if there are extra spaces or tabs space instead of normal space.  If you can share full file then it will be easy to find the error which is throwing the above exception.

Hi, You can write custom class which implements ExperienceFragment and in initModel() update the XF path as per your requirement.

Hi,You can create a custom servlet and write a query to list down the assets by entering parent asset path to reduce the load on images and the same service you can add a button to down the list in excel.  In this way we don't need to override ootb code to add a custom button 

Hi,Are you using /content/dam or Cloud Service (Dynamic Media/ Dynamic Media Scene7 or any other cloud service) for loading image ?  If replaced image is with the same name then mostly it might be caching issue either at dispatcher or if you are using cdn cache on top of dispatcher.

Hi, You can add the json and map to the resource          public final AemContext ctx = new AemContext();        ctx.load().json("/com/myproject/models/damresource/damFile.json", "/content/dam/cf");        Resource mockDamResource = ctx.resourceResolver().getResource("/content/dam/cf");       

hi, If you upload an asset which is transparent then using fmt=png-alpha or fmt=png will give transparent image but if uploaded image is not transparent then using fmt will not give transparent image.  We can remove background while uploading the image and steps can be found in below link under sect...

Hi, You can try exploring experience fragments for above use case. With experience fragment the content can be included at template level and can also be served as json/html  https://experienceleague.adobe.com/docs/experience-manager-learn/sites/content-fragments/understand-content-fragments-and-exp...

Hi, If you configure dispatcher flush agent, dispatcher cache should be cleared on page activation. Are there any ttl set at dispatcher level for your prod environment?  Also, on top of dispatcher do you have any cdn like akamai/cloudfront etc, if so it might have 12 hour ttl.