r.surf.contour does not work in a processing model in QGIS 3

[qgib]

Author Name: Alister Hood (@AlisterH)
Original Redmine Issue: 18097
Affected QGIS version: master
Redmine category:processing/grass
Assignee: Victor Olaya

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See the attached example model (a simpler model that only runs r.surf.contour would probably work - I can't remember if I have tested that).

...
ERROR: Raster map <vector_5a8397291566e4> not found 
...

For some reason it is trying to use the vector input into the previous algorithm (v.to.rast)!

This problem occurs in master on both Windows and Linux, but not if you build the same model in 2.18.16

I have assigned to Processing/GRASS, however I'm not sure it isn't a problem with Processing itself...

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• broken_r.surf.contour_2.model3 (Alister Hood)

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• priority_id was changed from Normal to High

[qgib]

Author Name: Nyall Dawson (@nyalldawson)

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This seems OK to me. Can you please retest on 3.2 master?

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• status_id was changed from Open to Feedback

[qgib]

Author Name: Alister Hood (@AlisterH)

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I have been able to reproduce in 3.2, but not reliably - I've tried tweaking and rerunning models repeatedly, but can't pinpoint it. Maybe we close this and I'll reopen if ever get a better idea of what's causing the problem.

[qgib]

Author Name: Nyall Dawson (@nyalldawson)

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• resolution was changed from to not reproducable
• status_id was changed from Feedback to Closed