The sharing function is useful for single pages or sheets, but I use PDF exports most of the time. But today I used it. And the JPG in that generated new mailmessage had extremely nonmatching colors (left). The color of the source document was set to cmyk isoCoated.
Then I changed the document color setting to sRGB 8, used again the share function, and now the colors are perfect in that generated JPG (right).
Its reproducable, I think its a wrong colorconversion cmyk to rgb for that function
best, Marcus