The original behavior is that the Brush Size should increase in the given direction:

There is another related bug changing brush size using Ctrl+Alt but it's related to #3433 (when a mouse and a stylus is used at the same time we get confusing mouse positions from both devices at the same time).
The original behavior is that the Brush Size should increase in the given direction:
There is another related bug changing brush size using Ctrl+Alt but it's related to #3433 (when a mouse and a stylus is used at the same time we get confusing mouse positions from both devices at the same time).