Two different layers, elements with same swatch, unexpected output when printed

[luca.carida]

Hi all,

I can't understand why I have this issue.

My documents has (among others) three layers:

Circles - A collection of small circles

Line bars - Coloured line bars

Background - A big shape 

The circles on top should artificially "mask" some part of the lines below, in order to have a "rounded" cut effect. Fill color is the same swatch color for circles and background, no effect, 100% transparency.

The output shows the circles are printed as "darker" than the background.

Any hint?

Here below you can find some screenshots. The bad one is a pic of the output. 

[luca.carida]

Some more details, sorry

InDesign 14.0 2 x64

[Willi Adelberger]

What file type has the background, what file type the circles and other objects?
Do all of them have the same color profile?

Whar settings does the color policy have?

What output intent do you have?

[luca.carida]

Hi, thank you,

the background is a rectangle drawn (Rectangle Tool) in InDesign, also the circles are shapes made with the Ellipse Tool. They both are filled with the same swatch (Gray PRINT). 

When exporting I use "includ tagged source profile". The output intent is "relative colorimetric".

[Willi Adelberger]

Use keep values.

[luca.carida · Accepted solution]

It seems it was an issue about the images (the .png QR codes who were in RGB) in the page. For some reason, even with the setting you told me, it did not work.

As I converted the images to TIFF CMYK it worked out fine.

So probably a setting in the color conversion was not working properly (but I can't say which one). 

Thank you!

[Willi Adelberger]

Why do you use PNG QR-Codes, probably from outside of InDesign, use the QR Codes from InDesign itself in the Object Menu.