Can you check the following:- Which user are you using for the transfer? Try using "admin" user and check if you get the same issue.- Setup a DEBUG logger on "org.apache.jackrabbit.vault" to get more details about the failure.

6.4 and 6.5 both use the same version of coral UI. So, the same page is applicable to 6.5. Sharing the link for the same page for 6.5 at [1][1] Dialog Conversion Tool

For Self signed certificate you can follow the steps under "Generating a Private Key/Certificate Pair to Use with the Wizard" at [1]On a live system, the certificate should be provided by your IT team[1] SSL By Default

Looks like AEM is not able to find the valid certificate for the https request. Make sure the certificate is valid. Also, Have you tried the SSL By Default setup?[1] SSL By Default

You can change the dispatcher log level to DEBUG and try to find what might be causing this issue.

Which version of AEM are you trying with?

There is another way to find the corrupted nodes and remove them manually. Check the "B. Remove corrupted nodes manually." at [1][1] Offline Compaction fails with SegmentNotFoundException & IllegalArgumentException

You can use Sling Model Exporter[1] and export fields as per your requirement.[1] Develop Sling Model Exporters

For Touch UI, you can use the Live Copy Overview feature[1][1] Live Copy Overview Console

You can use the "com.day.cq.wcm.api.designer.Design" API. More details at [1][1] Design ("The Adobe AEM Quickstart and Web Application.")