[DiapDealer]

I would think there's never going to be a network protocol in the middle of a valid local file path on any platform is there? http:/|https:/|ftp:/, etc...

C:/Program Files/Sigil/https:/www.adfg.alaska.gov/static/fishing/images/sport/galleries

Wouldn't some sort of if path exists suffice?

Let me dig a little deeper into where the crash is happening in Book.cpp

m_Book->GetFolderKeeper()->AddContentFileToFolder(filepath)