When i turn on edit landscpae layers my existing landscape gets all blocky amd also sculpting a feesh new landscape get this weird effect. And no im not using any alphas its all the default setting of the normal sculpting tool. Have a look…
https://drive.google.com/file/d/1e1rAU10nc7d1hrS84Y8npltJg3upbB_k/view?usp=drivesdk