Yes, I'd not noticed this until you pointed it out.
Perhaps a result of the developer tidying up the hotspot which activates the control?
In Xtreme4 on Vista Ultimate David, following the above, clicking on the fill nodes automatically selects the local start or local end appropriately in the open colour editor for me.
Any added middle nodes don't appear in the dropdown as you point out, but neither do they in version 3.2.4 on my system?
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