DHCP with option tag 12 doesn't seem to be working after upgrading to ThinOS 9.1.4 and higher

After upgrading to WMS 3.5.1 and now 3.5.2  and  the latest ThinOS 9.1.5  the thin clients are not getting their names from DHCP option 12. I started rolling the ThinOS back and it finally started working at 9.1.3. Once I upgrade to 9.1.4 the thin clients stop receiving their name. I tested this on both a 3040 and a 5070. Could anyone else confirm if its working for them? Make sure to unregister and reset them other wise they will remember their names.