If you're placing a Cog for instance, when looking where you'd like to place another Cog, it normally has a semi translucent model of where the Cog is going to be placed, but with the newest update it doesn't show anymore.

I experienced this as well, also the same thing happened when previewing block placement with Effortless Building.

can you please try the new update?

I gave it a try, so far so good, at least with Effortless Building.

Fixed in the new updates.