Thank you soo much for your input.

Yes I did, Arun.   *ERROR* GET /resource-status/editor/content/experience-fragments/project1/expfragment/en/site/header/master.1.json HTTP/1.1] com.adobe.granite.workflow.core.model.WorkflowModelCacheImpl cannot load model. id: /var/workflow/models/request_for_activation vid: 1.12com.adobe.granite.w...

Yes. I got an error when XF in editor mode and XF is not working in preview mode.  *ERROR* GET /resource-status/editor/content/experience-fragments/project1/expfragment/en/site/header/master.1.json HTTP/1.1] com.adobe.granite.workflow.core.model.WorkflowModelCacheImpl cannot load model. id: /var/wor...

I am using AEMaaCS. I have an experience fragment that I use across various pages and templates in AEMaaCS as header. Now I have to make some changes to this experience fragment. When I click on it to edit from the content tree, it shows up blank. The other XF's are working fine. The header XF which...