My External Hard drive goes to sleep for no reason.

Hi,

I have two Lacie Hard drives thunderbolt 1 (Lacie BIG + Lacie d2) connected through daisy chain. I used to work these drives with a Mac Pro 2014 until a couple of months ago.

Things were Preety straight forward - going to energy settings I just had to uncheck the "put the hard drives to sleep when possible" and the hard drives never sleeps.

Now I got a new MacBook 16, and obviously using an Apple thunderbolt 1 to thunderbolt 3 adapter to connect my hard drives.

So again, settings are correct - "Put hard drives to speed when possible" unchecked.

But one of the two drives (the Lacie BIG - which is the one connected to computer) keeps sleeping.

Anybody has a similar problem??

Many thanks in advance