The generated function BinaryData::getNamedResourceOriginalFilename is not working correctly as it compares the const char* pointers instead of doing a string comparison. If you are not passing in a string literal but you pass in a runtime computed string it’s failing badly.
I’ve opened a corresponding issue in github too BinaryData::getNamedResourceOriginalFilename compares pointers not strings · Issue #691 · juce-framework/JUCE · GitHub