Regarding The Euro/dow Futures Causation Effect

Hello,

For almost a month, I had noticed that the Dow Jones 30 futures were almost crystal-balling, if you will, where the euro would follow about 1-2 days in advance. As of recently, it stopped doing this and the euro went the opposite route. Can anyone explain to me why this was happening and why it’s not now? I saw the course for beginners here mention this, but I’m not clear on what the connection was and why the connection breaks off.

Thanks
PS