Can't play some Adobe Flash Videos...

Hello,

I am using Chrome (SRware Iron 54.0.2850.0 64-bit) and Internet Explorer 11.

Latest version of Flash Player NPAPI, PPAPI and ActiveX are installed (Flash 23.0.0.207)

My system: Win7 64bits

With Chrome and IE 11, I can play Youtube video but many Flash video on Yahoo Japan won't play.

The url is:

http://gyao.yahoo.co.jp/

Most video will play without problems, but many won't play. Unfortunately adobe error message are in Japanese so I cannot see exactly what is said, I cannot find the error code anywhere.

Here are links provided for test...

ATTENTION: you need to be in Japan or to use a VPN server in Japan to access the videos!

The following links give systematically a "Error Code: bc1001" message and won't play:

逃げるは恥だが役に立つ　第6話　温泉一泊旅行にまつわるエトセトラ　2016年11月15日放送分-動画[無料]｜GYAO!｜ドラマ

映画「ホラーの天使」公開記念　『マネーの天使～あなたのお金、取り戻します！～』　第1話　2016年1月7日放送分-動画[無料]｜GYAO!｜ドラマ

徳井と後藤と麗しのSHELLYと芳しの指原が今夜くらべてみました　2016年11月15日放送分-動画[無料]｜GYAO!｜バラエティ・スポーツ

The link below will return another error code (code "sth2") and won't play as well:

サイドカーに犬-動画[無料]｜GYAO!｜映画

The following flash video link will play without problem:

デッド寿司-動画[無料]｜GYAO!｜映画

ベッドラム　第3話「汚れた箱」-動画[無料]｜GYAO!｜ドラマ

ガラスのうさぎ-動画[無料]｜GYAO!｜映画

徳井と後藤と麗しのSHELLYと芳しの指原が今夜くらべてみました　2016年11月15日放送分-動画[無料]｜GYAO!｜バラエティ・スポーツ

Here is a page test with 3 kind of Flash video provided by Yahoo Japan:

GYAO!ご利用ガイド|GYAO![ギャオ]

The 1st and 3rd video links work fine, the 2nd link always fails ("Error Code: bc1001").

On my laptop under Win 8.1, the same problem occurs. That's even worse, the 1st type of video won't play and it gives a "sht1" error code

I've tried to uninstall reinstall Flash Player, reset browser settings, clean Flash and browser cache, etc... But still no way.

Thanks for any help!