Landscape sculpt tool uneaven

Hi there!
I’ve been using the landscape tool a lot lately without any problems, however, suddenly I noticed something weird starting to happen.

When I use the sculpt tool at full strength, everything works fine, and I get a hill like the one on the left. However, when I turn down the strength, I start to get hills that look more like the one on the right, where it is not smooth but instead segregated into different levels.

Any idea why this is happening?

Thank you in advance, Rasmus

Can you post the resolution of your landscape? It’s possible that using a low resolution landscape, scaled up would cause these kind of artifacts, also check that clay brush is disabled