Could you remove the -CPLabel=QFE2 part as that is resulting in the wrong version of the launcher to be used to download the engine. I’m sorry this is such a confusing setup. Clearly something we need to streamline and document better.
Just a quick note, the download size displayed is accurate in terms of what bits it needs to patch, but the actual download size is compressed and should be much smaller. We’ll be fixing that in a future release, thanks!