I can replicate this - the manifest in the installer for FL Studio points to a URL that is no longer available.

Currently, the manifest points to: https://demodownload.image-line.com/flstudio/flstudio_win64_21.2.3.4004.exe

Pasting this into the browser gives a 404: Not found error.

Changing the URL to https://demodownload.image-line.com/flstudio/flstudio_win64_24.1.1.4239.exe results in a download starting.

If I could find the appropriate manifest file, I could probably fix this myself.

The issue with the new installer is that it runs the MS Edge installer which needs to be manually killed, but I don't know how you'd do that automatically

The issue with the new installer is that it runs the MS Edge installer which needs to be manually killed, but I don't know how you'd do that automatically

For the time being, it's enough for us to know that manually killing the process finalises the install.

For other users, it would, of course, be better to update the installer bottle.

The main issue is that you can't open Task Manager since the main Bottles window is inaccessible when using the installer feature.
Works fine when running the executable by itself, just when this window (see below) is open, you can't interact with the main window

So how can i install it without error.

is there a way users can edit or override the manifest while we wait for a fix to get pushed?

Same here