Using Lightroom 5 - when I go back to a previously edited image to do further editing, using the Adjustment Brush, I open the effect that I want to use ( Dodge, for example) but all the sliders are inoperative. The word 'Dodge (Edited)' appears in the Effects header. Therefore I can't make any further changes to the image. I have opened the drop down Effects menu and ticked 'Restore default presets' but to no avail. Any solutions welcome.
Make sure Flow and Density are not set to 0 or other low value. Try setting them both to 100.
Thank you for that trshaner. The density was set at 100 but flow only 86. I've shoved that up to 100 now and I think we may have a result!