After adding new Component in page and authoring, content is present in the content node of crx/de but it is not appearing on page in Classic UI
Does it work in TouchUI? Do you see any error in browser's debug console when loading the page?
Make sure that the component's node with the page includes sling:resourceType property.
Yes, component's node with the page includes sling:resourceType property but still, content is not appearing on page. I added the component manually in the apps folder of Publisher instance as it was not present earlier, is this the reason for content not appearing by its own.
Is it not coming in author or publish?
1. Check whether sling:resourcetype property value on content node is correctly mapped to apps folder path .
2. If its correct then check if component which you are trying to include is having the same name of jsp or html as its node name