During normal usage clicking on words in the subtitles on YouTube, I frequently get error popups about an error occuring. Sorry, I didn’t write down the exact wording, but last I recall, it mentioned something about an error during saving. I just ignored it, as it still seemed to be working, as I could play the video, and click on words. But then, after a 2-hour session, I exported the words but found that only a few of the words I had clicked on and colored had been saved. Also, before the session, although I had emptied the saved list, all the words from before the clearing were back in the export.
What should I do when I get the error message? Would refreshing the page help?
Also, what if I use the plugin on different machines? Is everything kept in the cloud, or does each machine have its own storage?