bxl-forever
It might be a more helpful it you would please provide more details about what you had in mind.

I spotted this as a possible mistake:
"Chaussée de Mont-Saint-Jean - Sint-Jansbergsteenweg" should be "Route de Mont-Saint-Jean - Steenweg op Sint Jansberg" according to UrbIS.

E411, the road tunnel and most forest tracks seem to be okay, though the name "Waverse steenweg" appears on GRB maps for the motorway (whereas E411 will normally prevail).