meta alloys, did the update kill farming or finding them?

Was going to start building a ship to fight the thargoids, but after visiting several planets through three different websites, there is nothing.
After scanning the planets it tells you where the thargoid Barnacles are, but at every place I landed they are all taken.
Is there another way to get meta alloys
At any given moment of time, most barnacle forest are low-activity (no materials, no meta-alloys). You have to travel around and check them to find the active ones. Or, just buy meta-alloys from Darnielle's Progress in Maia.
.. or non Numan Signal Sources - they have Meta Alloys too.

If the OP has checked all the Barnacles (including WH), non human signal sources, military convoys, thargoid bases, wrecked megaships and not found meta alloys then they must be gone.
.. or non Numan Signal Sources [...]

Between the stars
I feel safest of all
I can lock all my airlocks
It's the only way to live
Between stars

Between the stars
I can only receive
I can listen to the FSS
It keeps me stable for days
Between stars

Between the stars
Where the canopy breaks down
Will you rescue me please
If I open my airlock
Between stars
Top Bottom