Problem with dubs

I wanted to continue to watch “Three leave, three colors” but the Japanese dub was gone, only the English dub is there. I was watching episode 7 last month with sub but I tried yesterday and today to continue the episode and the Japanese audio was gone.

Another problem is when I watch on tv, even if I put that I watch only with original audio, somehow when I click on episode, it automatically put the English dub, and I need to change it manually.

Are both of these another bug? Thank you.