Do you have a tablet? Are you using the tablet, or something else when this happens? Does restarting Aseprite help at all? In other words, could this be the same issue as here? Massive Drawing Lag in v1.3-beta3 - #17 by Hepari00
Do you have a tablet? Are you using the tablet, or something else when this happens? Does restarting Aseprite help at all? In other words, could this be the same issue as here? Massive Drawing Lag in v1.3-beta3 - #17 by Hepari00