I use CCleaner already for years (though occasionally to do some clean-up work, and mainly due to (misleading) false alarms by Avast).
I had my settings adjusted to not clear my browsers history, which I do manually.
So for the first time I used the more general option Health Check. I let it do what it proposed, and then it turned out it had deleted my browser history, although in the clean-up settings this was unchecked (for the specific browser).
I use several browsers: one for serious work, one for less serious work or websites that seems less reliable, working without cookies, and one or two for cases where the first two don't work. For he first one I like/need to keep my history to find things I worked on last week or so. So now I lost that.
I'm on W10, Avast AV, and OSSU privacy script. CCleaner up-to-date, april 7th 2024.