# LaTeX fails to compile due to Umlauts [duplicate]

I am fairly new to LaTeX, so please bear with me! :)

So my problem is the following: I have a LaTeX document with several subsections. I write in German, so I have to use Umlauts. Using them normally without the \"u trick worked fine, but now after line 246 LaTeX fails to compile because of the Umlauts. The first ~240 lines are ok though. I am using inputenc and fontenc. The document itself is in UTF-8, just like the setting for my inputenc.

I really have no idea what could have caused this, why the problem only occurs in a few lines, and why it does not apply to the whole document (and also why LaTeX stops compiling altogether!).