Issue: After changing the password, the Bulk Password Changer(cPanel) plugin interface turns into a blank page.
Solution:
The issue is due to the latest cPanel update
Comment the below lines in PasswdPop.pm
/usr/local/cpanel/Cpanel/Email/PasswdPop.pm
Cpanel::AdminBin::Call::call(
'Cpanel',
'mail',
'CLEAR_AUTH_CACHE',
"$virtualuser\@$domain"
);
This will fix the issue.