Webcam snapshot works, but streaming does not.

I'm having a weird issue with this one. The webcam stream URL does not work in the Octoprint UI, both the regular stream and the test button, but the test button for the snapshot does work. Going to <Pi IP>:8001 gives me this error: "501: Not Implemented! no www-folder configured". Appending the stream URL to the end of the <Pi IP>:5000 URL doesn't work, but oddly, removing the :5000 makes it fully function for streaming. I'm sure this is just some sort of pointer gone wrong somewhere, but I just can't find where or what. Any ideas?