Registry permissions on x64 node

I am creating some registry keys under WOW6432NODE on a x64 node during
setup. These keys are then mirrored over to the normal non-WOW6432NODE
location using a custom action that uses registry reflection. Now, the
registry keys are as follows:

HKLM->Software->Level1->Level2->Level3->Level4

Levels 1 through 4 are custom keys which my MSI creates. Now, the
permissions as defined in the MSI are "Full Control" for Everyone and for
Administrators. However the MSI applies these permissions only upto Level3.
Level4 and downwards, its creates permissions for Creator Owner and Users
instead of Everyone. And the permissions arn't Full Control.

Not sure whay that is happening. The permissions looks fine in the WSI file
under LockPermission table. Any ideas? Would appreciate some inputs. The
above behavior is the same in the nomal location as defined above as well as
in the WOW6432NODE location.

Thanks,
Manas