Projection problem with Sentinel-3


my problem is very similar to a couple of older forum topics, yet the solutions suggested there are not able to solve it.

I worked with these two files:


with the following workflow:

  1. load files into the latest SNAP
  2. reprojection (-> UTM/WGS84)
  3. C2RCC processors -> OLCI
  4. open respective conc_chl. img files in QGIS

Yet the result is this map, where the data are 800 m offset from each other.

Please help. What am I doing wrong?

Thank you in advance!