If I go into the Approval Form then execute the Approval button on a Change request I get an Update Error occurs.
Release or Environment
Confirmed on Paris
ServiceNow has changed the licensing requirement for the users to be able to approve and as per the below logic in 'Approval Info' widget the use should at least 'approver_user' role
Please see the line 11 in server script of the widget code :
var userApprovalAccess = gs.hasRole("approval_admin") || (gs.hasRole("approver_user") && data.isMine);
Try adding the role 'approver_user' to the user or you can modify the widget where this condition has been included.
As the user do not have any roles, it redirects to service portal and we need the 'approver_user' role for processing the approvals