Why is an enabled Veeva Setting not working properly in Veeva CRM?
A common cause of this issue is that the setting is enabled at the Default Organization Level Value level but not the Profile-specific level for the user's Profile.
Check whether the affected user's Profile is aligned to a Profile-specific Veeva Setting. On the bottom of the Veeva Settings page, in the section under Setup owner, the Veeva Settings page shows any profiles that have their own Veeva Settings.
CRM Help Documentation: Veeva Custom Settings