For some reason, the import of page builder content was not happening right. I manually exported and imported the JSON files from the page builder directly for the home pages. The issue is resolved. Have attached the JSON files for your reference, just in case you need the same. This could be due to encoding differences which is making the page builder not recognize the content imported. But export and import from the Layouts button in page builder works great. All the home pages are working fine now.
Regarding menu issue, I did my best but the menus are not being imported due to encoding issue – at least that is the best information I have from the wordpress.org forum moderators. I created a sample menu for you and you can easily create the rest manually. Hope this helped.
https://wordpress.org/support/topic/import-from-xml-file-giving-errors/
The issue could be due to presence of # character in the menu slug to handle internal navigation through internal links.