Dynamic Data fields not visible

I followed all the steps as mentioned on the Dynamic Data Attachments support page. I have linked the 2 projects as mentioned. But, I cannot see any data from parent project reflecting in the child project. I did not face any issues while deploying both the projects. I also validated my forms from the ODK XLSForm validator.
Please help.

@paani, it should take 5 minutes to sync the data.