karmat yes I would suggest that you contact support@stardock.com.
I do have one more question for you, and it may sound crazy, but hear me out. How are you downloading the new cursors? The reason I ask that is within the CursorFX program there is a means for downloading.
Open CursorFX, click on more cursors, then click the link to WinCustomize. This should take you to the cursor gallery/library. Left click on a cursor and then click download. Then click open, it should download the cursor. It has been automatically changing to the new cursor for me. Go back into CursorFX and click on My Cursors. The new cursor should show up alphabetically.
If it doesn't then send the email to Stardock.
I hope this helps.