Please make the "invert" mask setting part of the presets and affected by the "reset sliders automatically" checkbox.
In other words, the "invert" setting should be "remembered" if the "reset sliders automatically" checkbox is unchecked.
Previous versions of ACR behaved this way, in that the invert setting was "remembered" as part of the settings when using the brush, linear, or radial gradient tools (in fact, the invert setting was remembered specificlally to each tool. For example, my radial gradient tool *would* be inverted, but selecting the brush function, it would remember that I *didn't* have it inverted for that tool.)
Basically, we need the settings for each of the brush, linear, or radial gradient tools to "remember" the invert and slider settings from their last use if the "reset sliders automatically" setting is unchecked.
Look at how ACR 13.X handled this, and make it that way again please!