Brush size change does something else

[nrx]

Every now & then when I'm changing brush size using the hotkeys + mouse it'll change to this and get stuck like that. Not sure why it does that or how to revert to changing brush size again. Have to exit Affinity each time it happens. How do I avoid it going into this mode - all I want is to keep it changing brush size.

[Move Along People]

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[nrx]

50 minutes ago, haakoo said:

To scroll through the 3 options just click with ctr+alt+leftmouse button
Only drag up/down to change hardness
Only drag left/right to change size

To fully reset go to the more button on the toolbar and use the reset button

Yeah cool that's it. 
Thanks.