I don’t know if you noticed in your workflow for exporting epub/html that Indesign has a bug when creating classes, if you put, for example, “style” in the class name, for some reason it exports missing some character like “s yle”. The letter he chooses to disappear is completely random, which makes it very disruptive to the production flow of those who export html/epub from Indesign. Looking in the Indesign bug section I found two topics but with few votes. Today I got the adhesion of several people of the company that I work so that they voted in the errors so that they gained relevance of the Adobe page. In today morning they have already risen from 7 votes to more than 70! What I am asking you people to do is to vote to draw Adobe’s attention to this problem that interferes a lot in html/epub export workflow. And that at some point everyone will encounter this error. Here are the links to vote, let’s spread this idea, please!
https://indesign.uservoice.com/forums/601180-adobe-indesign-bugs/suggestions/32144215-export-tagging-i-character-in-class-name-export
https://indesign.uservoice.com/forums/601180-adobe-indesign-bugs/suggestions/38520238-export-tagging