Hi @stefanj ,
What version of QGIS are you using? I just did a quick test and it looks like I was able to write out an ECW file with EPSG:25832 (which appears to also be labelled as ETRS89.UTM-32N) and open it up in 3.8 (although it required a transformation in my case).
I found the bug report you are mentioning, ref FMEENGINE-33557, but it appears that was resolved in 2012 so hopefully this isn't a regression.
Could you also let me know what build of FME you are using?
Hi @chrisatsafe, thanks for the quick response! I'm working with QGIS 3.10.2 and FME 2020.2 Build 20820.
I also can reproject the ecw-file to EPSG:25832 with QGIS but what I need is the correct Datum in the ecw-file for another application.
When I open the ecw with ERDAS IMAGINE I get the Information, 'Datum is undefined'.