Reported by Associação de Municípios TERRAS DO INFANTE
Attached shapefile has projection ESRI:102164 but MW5 doesn't recognize it.
After discussing with the reporter I removed the ESRI projections again and added them as dialects to the correct systems.
I also received more sample data and made more fixes.
The reporter replied after testing my changes in the projection database:
Great job! Many thanks, all projection systems are now correct.
Don't take a long time with the ones that have no tiles, because they show in geographic coordinates, and people now use almost shapefiles that are projected.