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I just started using QGIS. I need to work with QGIS on three different operating systems (Windows 11 (QGIS 3.26), MacOs 12 (QGIS 3.26) and Ubuntu 22.04 (QGIS 3.22)/Fedora 36-Linux(QGis 3.26).

I noticed a strange behavior on loading shape layers on different platforms - generally the scale should be about the same - but it isn't.

On Windows and Ubuntu the scale seems to be correct (see screenshot files) - on MacOs and Fedora the scale is completely different. Naturally this has for example implications on Labels, which are shown dependent on the scale - on MacOs and Fedora they seem never to appear unless I zoom extremely into the shapes.

I can see no difference in the Layer and project settings - can anybody give a hint what's wrong?

Screenshots: Ubuntu - Linux - Qgis 3.22 Ubuntu - Linux - Detail MacOs - Qgis 3.26 [MacOs - Detail3

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    Could it be that the Project's CRS are indeed not identical, but just the on the fly projection is enabled? gis.stackexchange.com/a/45223/176374
    – Vincé
    Aug 19, 2022 at 13:15
  • What do you mean "the scale should be about the same"? You can change scale freely in any project. You also write about labels - but on your screenshot, I can't see any labels. So I'm not sure what exactly you're asking about.
    – Babel
    Aug 19, 2022 at 13:47

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just by chance I stumbled across the solution - I guess:

In the project options under 'Messungen' (I guess 'measure') -> 'Ellipsoid' I had to choose 'GRS 1980 (EPSG:7019)' - That's been the difference...

correct Values

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