what is happening here

CTT Windoes Utility -> Tweaks -> Remove Microsoft Edge

Removed edge when I got my new computer about a year ago and haven’t seen it since.

You are right, it’s part of the subtitles. Not sure why I did not think of that.

Also thanks for recommending mkvtool, never heard of it until now which is great because when I play LOTR from a flash drive on my TV, it defaults to Italian language.