Sentence audio not playing on 替代(traditional) lesson page

[narf]

on 替代(traditional)'s lesson page, the audio for this sentence wont play.

這 個 能 替代 原來 的 嗎？

Can this replace the original one?

the other two sentences play fine, and this sentence plays fine on 替代’s word page.

the word page and the lesson page both look to point to the same mp3 file.

[kevin]

Fairly sure this is an intermittent error. The mp3 file probably failed to load due to some intermittent network error in the lesson. I think we can add some logic to force a reload of the audio file in this case. I added a ticket for this. Thanks!

Edit: I was able to reproduce the issue by purposefully blocking some network requests intermittently. We have a fix that will go out that will fix this going forward. Thanks!