Huh, this is a very weird problem indeed
Do you recognize those words that are absent from the csv files as words that *used* to be in the csv file at some point? I can’t see a pattern in the browser information of the participants that encountered the problem vs those who didn’t, but the farm is currently having glitches where it can save multiple copies of the same file: you only see one file listed in your project when editing it, but internally there can be several versions of it and the one that gets served to a participant can be random
My suggestion is you make sure you have the csv files that you want on your computer, then delete all csv files from your project on the farm (refresh the page after you delete a file and make sure it does not reappear in the project tree) and after that, upload the csv file(s) from your computer to your project
Let me know if the problem persists
Jeremy