I am currently analysing landscape change in the Netherlands, for which I am using maps which have Amersfoort 28992 as their standard CRS. However the most recent map uses Amersfoort 4289 instead. For my analysis I need to change the raster resolution of the most recent map, which I was planning to do with the align raster function under the raster tab. This doesn't work as the CRS do not match each other. I am not able to change the latest map from 4289 to 28992. If I change the 28992 map to 4289 it's not projected on the same place anymore. What would be the best way to go from here?
You hit the already classical problem: do not change the layers's CRS, instead use Menu Raster > Projections >
Warp (reproject) (in case of raster layers).
Alternatively, you could have the same effect by exporting/saving the layer and in the export dialog choose the new CRS.