Shortcut keeps reverting to previous tool

For well over a year I've had this issue and I thought at first it was a bug that would be corrected in the next update. A ridiculous amount of updates later (seriously, why so often?) and its still happening. I use keyboard shortcuts for tool selection, most commonly the clone stamp, the brush, and the spot healing or remove tool. when I hit the keyboard shortcut to change from remove tool to clone stamp (for example) it switches to the clone stamp tool for less than a second then back to the remove tool. Sometomes I have to hit the shortcut three or four times to get the selection to stick. Its so consistently bad that I've started hitting the shortcut four times by default to make sure. It's a huge time and attention drain. Anybody got any fixes?