Brush is making strange markings(?)

Captura de tela
even when i am just passing my brush without touching, it makes this strange lines, they disappear when i zoom in or out, but are quite annoying
does anyone know how to solve this?

Thanks for this report. I believe this is a known issue and I hope it will be fixed in the next release: Replace UI overlays (and any "get screen area to restore it later") with UI layers · Issue #4825 · aseprite/aseprite · GitHub

Just in case this is not related to #4825. This is another bug, please read he following comment for more information: Cursor visual traces on zoomed out canvas · Issue #5005 · aseprite/aseprite · GitHub