When switching between thread types in selecting colours, I have noticed that sometimes the bottom of the DMC floss list is cut off; that is, some of the last colours are missing from the list. This happens when I have previously used a thread list which contains fewer items to obtain threads to blend with a DMC floss. If I save my pattern and reopen it, the list is complete again. Also, if I select the Anchor thread list and then return to the DMC floss list, it also shows the complete list again. Can you reproduce this? It seems to be a minor glitch.
I wasn't able to reproduce this, but I am not sure I know what I am looking for. Can you send me a screen capture of your window when you have the problem?