Mining does not work on planets. So it's intentional.

If ahm, if you fancy using it on planets you can if ur the host,

Youd have to find the "ItemsConfig.ecf" file in the Scenarios Content > Configuration folder.
Then use a Text Editor like NotePad++, use search function and type in "+Item Id: 135"

When there change:AllowAt: "Space"
To:AllowAt: "Planet,Space"

Then Scroll down to "Child 1 Class: Driller" and change
IgnoreAtmo: false
To
IgnoreAtmo: true

That will allow it to work on planet deposits
Tho its a bit janky you have to look at the deposit for it to start drilling.
There might be some other line that needs changing but i was too lazy to look and for what i needed that change above worked well enough.
Also that takes affect on the 1st two tool turrets (when u right click there are 4 and the 2 regular and retractable ones are the ones that edit works on)

You are also able to allow other CV weapons work on Planets too this way if you wanna customize ur own playthu more.

PS: Make a copy of the file you intend to edit. Before editing it juuuust incase.