Universal Unable to start secret/e2ee chats on Facebook messenger

[Sweet_Caroline]

I’ve been searching online for a bit and I can’t find an answer. At least I’m not the only one who has this issue, I found a post on Reddit, but no answers. This is the only “tech” site I really go on, so I hope someone can help me here.
any reason why I can’t start a secret chat? The toggle is missing.