Bug Report: Duplicated and incomplete English subtitles on YouTube

I am a user of your dual-subtitles extension, and I am writing to report a recurring issue with the English subtitle track.

• Issue: The English subtitles are frequently duplicated and cut off mid-sentence.

• Description: As shown in the attached screenshot, the subtitle text repeats itself (e.g., "And how do we... And how do we...") and ends abruptly without finishing the sentence. While the second language (Vietnamese) appears to be translated correctly, the English source text is broken.

• Platform: YouTube (using the latest version of the extension).

• Impact: This makes it very difficult to follow the content and learn the language effectively.

I have attached a screenshot of the error for your reference. Could you please look into the text-rendering or synchronization logic to fix this "looping" effect?

Thank you for your hard work on this useful tool!

Best regards,

Dang Vo