7shi Ugh, I think something went horribly wrong :/ I'm rerunning my script, and it's happily reuploading hundreds of English speaker courses for Czech, Maori, Swahili, "Other language", etc., which must mean that those courses were somehow deleted, as you mentioned.
Yeah, sorry, I haven't gotten to diacritic handling yet 😅 My hope is to provide an option to let them be required or not.