I hadn't used qBT in a while, but when I fired it up this morning (it's morning where I live), it told me a new 4.5.2 version was available and would I like to download it. I said OK, and was directed to FOSS Hub for download.
Download went fine, but when I tried to install, just after the installer finished unpacking, I got this error message:

I clicked OK, hoping install would proceed anyway, but of course it didn't. I tried with different install packages from the same download page at FOSS Hub, with the same result.
Problem is, prior to trying to install the new version, the qBT installer uninstalled the previous version, so lo and behold, I'm now without qBT at all...

Have some of you already encountered that error, and how did you solve the issue? qBT is my favorite soft for that kind of use, and I don't want to revert to using other programs if I can avoid it.
Additionally, I recently updated my Windows 11 Pro to the so-called "Moment 2" version. Could this have to do with that?