I have a point ESRI-layer with CRS 4647, it should show special points along rivers in my region. When I open it in an existing QGIS (3.22) project (CRS EPSG 3044 or EPSG 25832), I do not see any points, though the attribute table exists. When I adapt the CRS of the point layer for example to CRS 3044, the points are visible, but somewhere in the ocean, not in my region (lower saxony, Germany). I tried too to reproject (with QGIS toolbox) the layer, no success. Then I tried to export the layer to a new layer with CRS 3044 - no success. When I open a new project only with the point layer, and add another layer out of my region, the two layers do not fit to another.
Has anybody an idea, what I could do?