Either had a new radio button ‘Overwrite file’ or a new checkbox ‘Delete file if it exists’…
Yes, there’s an obvious workaround 
Steve
Use Create File Action - it has the overwrite option you are asking for. That’s what I do - use Create File to start the file and the Write To File to append.
Ah yeah, I was just using Delete File without the option to raise an error if the file doesn’t exist. Your way is marginally more readable/sensible…
Steve