Brush Size bug

[Halex]

Changing brush size by Ctrl + Alt doesn't work very well, because sometimes the brush size isn't the same as the change icon. 
 

[walt.farrell]

I think the size shown for the brush is affected by various brush properties such as hardness and possibly by the size variations that can be specified in the brush settings. So we would probably need to know more about the exact brush you're using in order to explain what you're seeing.

[Halex]

On 3/26/2022 at 12:18 PM, walt.farrell said:

I think the size shown for the brush is affected by various brush properties such as hardness and possibly by the size variations that can be specified in the brush settings. So we would probably need to know more about the exact brush you're using in order to explain what you're seeing.

I was using the Eraser Tool. In the record I was trying to increase the eraser size.

[walt.farrell]

1 hour ago, Halex said:

I was using the Eraser Tool. In the record I was trying to increase the eraser size.

It is the Erase Brush Tool, and it uses brushes selected from the Brushes panel just like any of the other Brush Tools. Therefore, the brush you have selected in the Brushes panel, and the brush characteristics such as hardness (which you can see in the Context Toolbar), will make a difference.

For example, here is how the Erase Brush Tool, with a Basic brush, 128px, hardness 100 looks (see the white circle):

Here is the same tool, with the same brush, but at hardness 50:

As you can see, the brush appears smaller, which is solely a function of the hardness since everything else is the same. That will also be a factor with the appearance of the brush size when you are changing the brush size as you were doing.