[TYPO3-english] DAM thumbnail problem with German name

[Rayuth You (Yuth)]

Hi list

Using typo3 4.5.10 and DAM 1.2.2 , I got no thumbnail generate in BE and 
do not display in FE when the name of image is in German.

But it works fine when file name is no such characters like ä, ü , ...

Any body having some hint?

Regards,
Rayuth

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Khmer TYPO3 User Group
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Rayuth You
Web Developer

M: +855 11 262 078
E: rayuth at typo3cambodia.org