No Brush on New Pixel Layer

[Glenn]

For no apparent reason, suddenly no brush will now paint on a new pixel Layer.

The same brush will/can paint on a pixel layer where there is content.

I've tried with many brushes - including several unchanged defaults.

This happens with existing and new files.

Closing, re-opening the File and then the App has no effect.

 

It is almost as if there were a universal 'protect transparency' mode applied. (Yet I can bucket fill a selection area).

 

Struggling to find a way into this App, it's possible I have inadvertently changed some setting, yet I can't think what or where or how...

 

I'll attach a screen-recording here. (Where you see empty pixel layer made active that'll be where the brush is being applied but making no mark).

 

ScreenRecording_11-27-2017 16_52.mp4

 

2017 Pro 12.9

AP beta 1.6.7.68

iOS 11.1

[MEB]

Hi Glenn,

That's because you have Protect Alpha enabled (the thin outline around the circle) in the context toolbar on bottom. Tap once in the alpha icon on the bottom of the interface to disable it so you can paint on transparent areas of the pixel layer as well.

[pixelcoder]

Hey,

 

you  might have alpha lock enabled, what I also noticed in the preferences in the tools tab, when you have „Touch for gestures only“ activated you can only paint with a stylus like the Apple Pencil on the canvas. 

 

Cheers,

lutz 

[Glenn]

My thanks to you both. And apologies too: it was indeed the Alpha Lock, and I should have learned about that (and other basics!) before I started! 

 

Wrong place to mention this, anyway, since it's a Help issue, not an beta problem.