that is because the user related api hits are not working .
place .
I checked this problem with the profile .
Make sure that you have updated vibe course module to version 3.5.1.1 .
Also in your .htaccess file please try adding this code for the profile blank issue : SetEnvIf Authorization .+ HTTP_AUTHORIZATION=$0
If above does not works then please try adding this line :
SetEnvIf Authorization .+ HTTP_AUTHORIZATION=$1