Second try (originally I traced the OP image with your logo etc, now traced the correct tree image):
I see the traced result is displayed yellowish.
This is the actual bug.
The traced result is not yellow when exported!
Traced result as shown in gimp, inkscape, and sxiv
I’m not sure exactly what the cause of this bug is, but it seems pretty clear to me now it is an issue with Inkscape’s display.