[QGIS-Developer] Kernel density of SAGA broken?

[matteo]

Hi,

sorry for continuing bombing the mailing list.

I'm testing some random algorithms and it seems that the Kernel density
of SAGA is broken. Or worst, it seems working, a kind of output is
created (but it is not visible) and no error or stack traces.

But from the shell I can read:

ERROR 1:
/tmp/processing_7ef0f968a47545ab860059bd3fe312b1/80a5870e495c4905a5775f0d08d1b395/TARGET_OUT_GRID.sdat,
band 1: Failed to compute statistics, no valid pixels found in sampling.

I tried with the Heatmap algorithm (same layer, same parameters) and
works like a charm.

Tested also with different data but same result

BTW: one set of data I used is the one of John Snow of the Processing
training manual with the parameters suggested [0]

Should I open a ticket?

Thanks

Matteo


[0]
https://docs.qgis.org/testing/en/docs/training_manual/processing/john_snow.html