See Titling an Out-of-State Vehicle Previously Title in Kansas.
Void title is designed to void the current ownership and reinstate the previous ownership (and the last title). In the case of a non-transferable registration, the previous ownership had no title. Therefore, the proper process would be either to use the void title transaction and the non-transferable registration transaction or just to use the non-transferable transaction to reinstate the vehicle ownership as it was before.
The system will prompt the user to capture a reason why the title was not surrendered from a list of reasons. Also, a SI Title fee will be charged.