Yes I have been struck by the invisible publishing bug.
What is this bug?
The bug is where the KDP preview is different to the look inside display. Above is the start of my latest ebook as shown by Amazon “Look inside”. This is disappointing because at not point is the text in my book shown as red!
I currently use Scriviner as my formatter and compiler and in that the text is black on white. If i compile and view using kindle installed on my computer again the text is black on white. If I upload to kdp and use the online viewer, the text is black on white and the download preview is the same aswell.
This is upsetting and explains a few things. I have had to export to html and found a few more bugs in the generated html source. Looks like I will have to hack through that file if I can find the time around NaNoWriMo.