Maybe try putting your weight file path in quotes.
-w "C:\Users\Owen\Desktop\GO\LeelaZero\weights.txt"

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Go is such a beautiful game.

Have you tried the most basic ?with nothing else (19x19, no handicap, no initial commands, etc)

Trying your method it still does not ever move and produces (see image).

Does nothing.

Mine works. Latest weights file is the unpacked .gz and renamed to "bestnet". bestnet in the same folder as leelaz.exe.

--gtp --threads 6 --noponder -w bestnet
time_settings 0 6 1

The folders you use must be named WITHOUT spaces

e.g. a folder named "leela-zero-0.15-win64" is OK
but one named "leela-zero-0.15 win64" is not

(all the folders in the paths to leelaz.exe and to your weights must be without spaces)

I did exactly as you recommend and it could not find bestnet. I then added the .txt to the end toit - bestnet.txt it then located it because it did not give any warning that it could not find it and went through the rest of its business with the last thing saying it is "Thinking at most 5.0 seconds". However, it just still hangs and never makes a move. I even ran a batch file to optimize the gflops that is stored in the leelaz_opencl_tuning file before any of this.

So I am wondering if it is a problem with Sabaki itself, because clearly it is finding and accessing the engine leelaz.exe and it is finding the weights file, and modifies the the threads used and acknowledges the time settings, but it never actually makes a move.

As another poster commented about spaces, I have no spaces in the folder names.

when using cpuonly works?