Auto-indent does not work with specific C++ code

Auto-indent stops working correctly if a specific C++ code is present. 

Not working means:

• "fix indentation in selection" (Ctrl+I, German: "Einrückung is Auswahl korrigieren)
• Entering new-lines brings the cursor to the wrong position

The following code is an example: it is a project I am working on, one version of the function is fine (if some lines are commented out), and one version is broken (after line 100).
test_syntax.cpp