Re: Import JPG w/ LR. -> Export it (no change at all & same colorspace) -> Different image???

First of all, many thanks, I´ve been researching for a looong time before posting in here with no luck so far.

I made a test:

I opened (imported) a JPG with LR. Colorspace sRGB. Then I exported it. Colorspace is still sRGB

I did it 5 times. Taking the last exported image as next input.

So I have JPG1,JPG2....,JPG6

Each one is darker than previous with the soft I use for wiewing.

I open JPG1 with LR, navigate to JPG2 wich LR shows it as darker too, JPG3 is shown darker than JPG2 also... SO LR shows same as my viewers.

And here comes the funny thing: If I see hystory of JPG6  in lightroom, only 2 events appear, imported w/ date AND exported with date. SAME in any other of the 5 images.

SO the program when exporting make some changes that are not reflected in the historical.

?????