strange behave of sf::InputStream

[FireDragon]

Dear Reader,
im am using an MSVC 14.0 Compiler on a Windows 10 Computer, together with a dynamic linked Version of SFML 2.4.2 (32 bit) from the officell Webside.
I am trying to combinate SFML with PhysicsFS version 3.0.1 (self Compiled with 32bit Debug and Release Binarys). The loading of Texture with my custom stream class works realy good. But the loading of Fonts dose not work.

My first try was to load the Font directly form the Harddrive:

Code: [Select]

sf::FileInputStream t;
t.open("Devil/Fonts/ArchitectsDaughter.ttf");
font.loadFromStream(t);


[eXpl0it3r]

"Doesn't work" is not a problem description.

What doesn't work exactly?