There are 2 modes you can use to change or correct a name.
Use Title mode to change or correct the name of a registered owner.
Use Instrument mode to change or correct the name of a mortgagee, encumbrancee, lessee or other interest holder.
If 1 or more of the affected titles are hidden, that is subject to a current non-disclosure direction, you must manually lodge an instrument to change/correct the name for a Registered Owner.
You can progress with the dealing if the change of name is for a mortgagee, encumbrancee or lessee.