Molusce crashes QGIS when starting the changes raster calculation

Question

I am doing a simulation of land cover changes with Molusce 3.0.13 in QGIS 2.18.9. I am using 2 Corine landmap uses (2006 and 2012, with minor changes on the area, 12 same categories in both), road distances, sewer distances and a population net. All rasters have the same resolution (10) and are Int32 and have the same nodata value of 99999. The CRS is EPSG:3912. The plugin calculates me the Paerson's Correlation coefficients and the Area Changes table but it crashes after starting the "create changes map". I was trying to troubleshoot a lot (ot change, .QGIS folder deletion, plugin reinstall, different clips, nodata values...), but I could not find any remedy. I just saw that the plugin crashes later if I add a different color palette, but not sure it's relevant. I found this topic open on it's Github Issues page, but there are no replies...

Does anyone know what's wrong with my data / which library I miss /etc?

Answer 1

The solution is the reclassification of values!

After searching the answer also on YouTube I got responded by a user which wrote me:

An additional tip: a friend had labeled categories in their map with numbers 101, 102, 103, 201, 202, 203, 301, 302, 303, and Molusce was crashing. We found that reclassifying the categories to small numbers: 1, 2, 3, ..., 8, 9, solved the issue.

Check his tutorial as well, this is actually a great tool! https://www.youtube.com/watch?v=D7hoBTKhldE&t