In OC Alarms window the action items Launch URL from the alarm and Edit URL Actions from the upper right corner.
Release : 20.3
Component : UIM - OPERATOR CONSOLE
Make a backup of $\Nimsoft\hub\security.cfg & $\Nimsoft\probes\service\distsrv\base_acls.cfg.
Ensure they are in the base_acls.cfg
<Edit URL Actions>
name = Edit URL Actions
desc = Edit URL actions associated with alarms
access = write
type = Alarm
apply_to_existing_acls = Superuser,Administrator,Operator
</Edit URL Actions>
<Launch URL Actions>
name = Launch URL Actions
desc = Launch URL actions associated with alarms
access = read
type = Alarm
apply_to_existing_acls = Superuser,Administrator,Operator
</Launch URL Actions>
Open distsrv probe utility which is a available via Admin Console or IM > distsrv ctrl + P > select set_acl_init > for file_name enter base_acls.cfg > click the green arrow.