[Unchecking "Show SSD drives" only removes the first SSD drive from the list]

I am running Windows 8 Pro.

 

Defraggler correctly labels both drives as SSD in the main list (in the "Media Type" column).

 

The first one (C:\), which is removed when I un-check the "Show SSD drives", is a SanDisk SDSSDX240GG25 (SanDisk Extreme 250GB).

The second one (D:\), which is NOT removed when I un-check the checkbox, is a Kingston SV100S2128G (Kingston SSDNow 128 GB).

[Unchecking "Show SSD drives" only removes the first SSD drive from the list]

Pretty much what it says in the title: I have 2 SSD drives in my machine, and when I uncheck "Show SSD drives", only the first one is removed from the list.

 

I'm using v2.15.741 (64-bit)