Yes you have done everything correctly .
There might be some issue in api hits.
Please check :
1. Your vibe course module and vibe customtypes plugin is updated to latest version 3.8 .
2. check if api hits are successful or not and they are returning 200 status in your chrome inspect element -> network tab .
If above things are check then please share your site url , admin credentials in private reply to check this issue at your end .