Hi Thomas, this is caused by the "simplify graph" streets filter. This filter tries to match curved streets to the imported straight street segments from OSM, but seems to get it wrong in this case. This can be solved by disabling the filter during import: importing using: file menu -> import -> osm import deselecting "run simplify graph tool after import" in the dialog clicking okay But then the streets will not be curved. A further option is to then run the tool manually (graph menu -> simplify graph), and lower the "threshold angle" to something like 31 degrees (or lower...) to see if it improves the result.
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