by the way. Judging for the screenshot, I'm suspecting you are making a beginner mistake. Do you work with a grid size of 1 or do you have snap-to-grid disabled? Because it looks like your brushes are just slightly off bigger grid sizes which implies that said mistakes are the case.
Try to work with a bigger grid until you make details. A good grid size to start when making more basic things like layout is 8 or 16. Also brush vertices should always be on the grid.
If you have plenty of offgrid brushes or always work on grid size 1 then mapping will be more unorganized by a clustered view, inconvinient to edit brushes and can cause technical issues.
But maybe I'm just missjudging you from that screenshot. It's just a guess