Task Manager hangs when trying to create grid with kml input file as area of interest

[rdelach]

Using the TeachOSM task manager instance (http://tasks.teachosm.org), when creating a new project, I cannot get the site to create a grid for in area of interest that I input using a fairly simple kml file. When I get to the Step 3 page, the page says it's "computing..." but never completes the grid. See attached screen capture.

[pgiraud]

@rdelach Can you please post the KML you're using somewhere? (https://gist.github.com/ may help)

[rdelach]

Here is the public GIST of the files that I am trying to use to create a project in the task manager.
Note that I have now also tested the geoJSON file and it doesn't even import to the task manager.

https://gist.github.com/rdelach/d499faf04f867274d97c5d59381e56e2

[pgiraud]

Hi @rdelach. Sorry for the delayed answer.
It was a good idea to convert this to GeoJSON.
I tried both on my machine. Unfortunately, the tasking manager doesn't support GeometryCollections. I advice you to convert the collection of polygons to a multi-polygon if you can.

[rdelach]

I converted from GeometryCollection to a single polygon per record with the same result. The layer went from 1 to 3 polygons. I don't know the difference between a GeometryCollection and a multi-polygon, sounds like the same thing to me.

[pgiraud]

Here's a new version of the GeoJSON. I manually edited it to only keep the main polygon.
https://gist.github.com/pgiraud/3201eb84ebe2418b35f1ed93e4180fad