Does Amazon insert typos?

[Hopscotch]

In reviewing the Read Inside for a book I recently Zon-published, I discovered a repeated typo - a double L after F as in "fllat."  Checked the original text (uploaded from Word) and Kindle Previewer - the typo is not in either.  Don't recall Amazon sticking typos in any of my previous books.  Anyone else experienced this and best solution?

[Lynn]

I really don't know what could cause this... but fl is a common ligature, so is it possible it's a font issue coming up in conversion?

These are the most common ligatures, ff, fl, fi, ffi and ffl. A ligature is not simply two letters arbitrarily glued together. The two letters are crafted into a single letter (technically speaking a single glyph). https://ilovetypography.com/2007/09/09/decline-and-fall-of-the-ligature/

Came up from the first search in Google for common ones.

You could check if any of the other typos match and either confirm or eliminate this as a possibility?

(Word lets you set advanced typographic stuff in the font tab.)