[Gimp-user] GIMP 2.9.5 Erase

[programmer_ceds <forums gimpusers com>]

Am I missing something obvious here?

I create a new image, use bucket fill to fill it with the background colour (not
white, although the 'problem' still occurs with white) and add an alpha channel
to the layer.

I then select the eraser tool and erase a strip of the image - this works fine
and I see the chequered/transparent background as expected.

If I then erase another strip that in part crosses the first strip the
intersection of the strips becomes white.

Erasing the intersection again toggles it back to being transparent..

I have tried adjusting various controls for the eraser tool without success (I
consider success to be that the intersection of the two strips remains erased).

I am using GIMP V2.9.5 commit 7111ead (the portable Windows version from
Partha's site posted 12.2.2017 (many thanks to Partha for posting these
versions))

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programmer_ceds (via www.gimpusers.com/forums)