Where is the setting that turns Details Off?

[Jamr]

You can see the details in the wood planks on the top and sides but for some reason the slicing process deletes the details from certain areas when I change the system presets.
As you can see in one image the vertical planks have no detail and in the second image horizontal planks have no detail.

What is the setting that does this?
How do I get all of the detail to slice?

[krellboy]

Arachne? Detect thin walls? Line width?

[BambuBanker]

Change wall generator to arcane, the reason for them getting deleted is classic wall generator can sometimes delete small details, while arcane will keep them.