"+" and "-" keys won't change exposure anymore, now they change blue saturation shift. How do I correct this? Thank you.
It seems you are using Lightroom and you are editing the image in Develop module.
"+" and "-" keys are there for all the sliders like Exposure, Contrast etc.
You need to click on the desired option (Exposure, in your case), then you will be able to use "+" and "-" to adjust the Exposure.
You need to click on the function that you want to change.
Please click on Exposure.
On the screen, you will be notified.
Once you get this on the screen, you will be able to use "+" and "-" to adjust the Exposure.
Please let us know if this helps
That worked - such a simple answer, but couldn't get it to work. Many thanks -