Had this experience today. It was incredibly frustrating. Had to meme about it since I can’t get approval for my fix until tomorrow at 9am in another meeting.

Archinstall works until it doesn’t. Recently I tried Luks and BTRFS more than 6 times leading to a script error each and every time. Could I have done something simpler and archinstall work? Possibly. But it offers those things out of the box and for it to fail each and every time ultimately led me back to the wiki to do it manually.