Yes I have done exactly that several times. Same result. Works after I reinstall. But when I reboot, then it doesn't work. I get the standard Win 11 behavior when I click on the Start button.
On one of my computers (Dell Win 11 laptop), I can install Start11 and it works. Then I reboot, and it no longer works - I'm back to the regular Win11 behavior with the Start button. I've tried purging/uninstalling and reinstalling both Start11 v1 and v2. Same behavior. I don't have this problem on the other computers I have installed this product on. Help, please!