Load profile doesn't work

I have two different profiles I use that control whether or not the lights on my mouse are on or not. Manually switching between the two profiles provides the desired effect, but using the HTTP Hook plugin to load the different profiles does not work. I call the webpage using a python script, but manually browsing to the URL doesn't work either. Here is how I have it set up:

Method: GET
Path: mouse_on/off
Action: Load Profile mouse_on/off

I have a second set of HTTP Hooks for controlling my keyboard, but they use the Effects plugin actions, and those function as intended.

I'm using OpenRGB 0.8 (Build 11/27/2022), and HTTP Hook 0.8 (8e6c2a5e).