Please let us know your version of InDesign and your Operating System
What exotic scripts are you running?
Which green is giving you problems? Have you got transparency on your page, if so is your Transparency Blend Space in CMYK or RGB?
Are you viewing in Overprint PReview?HIgh quality? What's your View>Proof Colours set to?
Turn off Overprint/Separation Preview and Proof Colors, and if you have any transparent items on the page, set your Edit>Transparency Blend Space to RGB
"Edit>Transparency Blend Space to RGB" did the trick.
Looks like you are designing for screen, but your RGB Green is not printable and setting the blend space to RGB doesn't change that.
The document intent is mobile. I am not sure why the colour changed ( bugs in my script ), for me, the good thing is the script exported the dull colour, so if the end user really wanted that, then it worked.
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I am not sure why the colour changed
When the document blend space is set to CMYK any transparent object on the spread forces a CMYK preview—your out-of-gamut green previews as it will convert to the document's CMYK profie. The blend space doesn't actually change the color from RGB to CMYK, it's just a preview of how the transparency would blend for print.