Not sure how much this counts as a bug, but when using the stabilizer and using shift to draw straight lines, the stabilizer will continue to stabilize the line. Again, I don’t know if this is intentional or not, but it’s pretty inconvenient since I have to ‘lure’ the line to where I want it to go my shaking my mouse in the general area (as seen in gif). The problem worsens the higher the stabilizer value.
Thanks for this report. You are right, the stabilizer should be off in that case: freehand drawing + Shift key pressed (create a straight line from the last point to the cursor position).
We’ll follow this on: Stabilizer should be off when freehand drawing + Shift key pressed · Issue #4217 · aseprite/aseprite · GitHub