I'm fluent in Spanish, and noticed this today while studying. The RVR09S and the RVR60S are not tagged comprehensively in several places. Attached are a few screenshots showing the errors.
These are just a few examples. I have noticed others, but didn't not them down. You will notice I did a search on a key number to make sure it was in the text. The text on the far left is not a tagged text, it is a text that I imported. The three right texts are all tagged texts, and should all highlight a word for the searched word when the mouse is over the word in English to show the word in all tagged texts. The 10.59.29 screenshot the word is just the wrong tagged word on the RVR09S. The third screenshot 11.00.45 the RVR09 and the RVR60 both have the word in the text, however it is not tagged, and doesn't highlight. I'm sure there are more. These texts both need reviewed.