When replaying some Widevine content, sound not output.

[yukihiro-m-play]

When the ShakaPlayer Embedded replay some Widevine content, sound not output.
Problematic content will occur almost 100%.
Replay is setting "currentTime" to 0 and executing "play" when the player is end.

mpd URL:
https://tsg01.uliza.jp/ulizahtml5/content/issue213/big_buck_bunny.mpd

license server URL:
https://tsg02.p.uliza.jp/ulizasp/dash_api/customer01/rights_issuer_test2.php?pssh=AAAAWXBzc2gAAAAA7e%2BLqXnWSs6jyCfc1R0h7QAAADkIARIQQNDa0Kz7m%2BknpQMkJ9yUwBoMc2tpbGx1cHZpZGVvIg5zYW1wbGVfZXBpc29kZSoFU0RfSEQ%3D&streamid=sample_episode

And we tried and confirmed the following:

• It not occurs for the following test content.
  https://storage.googleapis.com/wvmedia/cenc/h264/tears/tears_sd.mpd
• It occurs in ShakaPlayer Embedded Sample Project too.
• There is no error log when a issue occurs.

Is there a way to improve this issue?

[yukihiro-m-play]

Is there any missing information in the issue description?