I can make a modification. When I return I cannot find the previous brush. This is not how it is supposed to work, all the other icons, spot remover etc., show the previous brush when I return to the image NOT the adjustment brush. In my laptop it works fine. I have not been abole to find a solution. HELP
Try resetting your LR Preferences file as outlined at the below link. Your "last used" settings are updated in the Preferences file and if corrupted may be causing the issue.