[ID-4261145] White Horizontal lines appear on InDesign Document after enabling "Overprint Preview"
InDesign CC 13.1 x64
In every document I open, everytime there's a single line in the top area of the document/artboard. It appears when you activate the
Overprint Preview with high quality. Then InDesign generates a thin white line 1px thick and 101px away from the top of the document. It
also keeps this position when I zoom in or out. Only if I begin to drag the view via the hand tool then the line is broken (obviously it
has some trouble to refresh complete).
The line generates on all pages no matter if there're images or graphics or text in the document on this page.
I discover this problem on both mac (MacOS Sierra) and pc (Win7 Prof. SP1 64 Bit).
You can only avoid this error by activate the ruler. Then the line disappears completely.
This workaround could be ok for me but sometimes I want to review my creation in high quality without the rulers or anything else 
disturbing my view.
But there's no way to do that. The white line is displayed also in the presantation view.
 Torsten Hielscher
    
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Torsten Hielscher
    
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    Hi,
Thank you for reporting the issue. We have been able to reproduce the issue and it is currently under investigation.
—
Adobe InDesign Team
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       Gary Anderson
    
 commented Gary Anderson
    
 commentedIn October 225, this is still an issue, 10 years after I first reported it. 
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       WyattDesigns
    
 commented WyattDesigns
    
 commentedI'm also experiencing this white line issue. 
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       alexdauchez
    
 commented alexdauchez
    
 commentedCome one Adobe, this problem has existed for at least 5 years! See this thread : https://community.adobe.com/t5/indesign/why-are-there-white-lines-in-indesign-preview-mode/td-p/7329183?page=2 
 It's unbelievable you didn't solve it yet !
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       Torsten Hielscher
    
 commented Torsten Hielscher
    
 commentedThanks for your comments and replying to the same issue. Since Adobe couldn't give support maybe it's a little bit helpful for you to know: On my side the error is only appearing when activate overprinting preview. So if you also activate the ruler then the thin line disappears. Thats not fine but it helps to proof the quality of the design without interruptions. That's how it works for me. But this is still no workaround for presenting designs on screen direct from InDesign to customers, colleagues etc. :( I hope Adobe will take a look at the problem soon. 
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       Anonymous
    
 commented Anonymous
    
 commentedA thin white horizontal line always appear on upper part of the screen in Presentation mode (when press Shift-W) 
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       Andreas Dobos
    
 commented Andreas Dobos
    
 commentedHave the same issue 
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       Torsten Hielscher
    
 commented Torsten Hielscher
    
 commentedThanks for your comment, Daryl! After a new cc-2019-update I was thinking "yeah, the probem was solved". But after different test with different files I figured out that the error is still existing. Maybe Adobe can check this problem once again? 
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       Darryl Robinson
    
 commented Darryl Robinson
    
 commentedI have had this white line issue in several versions. Must not be something they can fix. 
 The white line issue I have, the line will move depending if you zoom in or out.
 
          