I finally found my own solution. I downloaded the "USB mode switch for SGS1 on CM" app on my phone and reset the usb mode and restarted my phone and connected to my computer again and it registered as an MTP device
This does not work.
The ability to change this setting simply disappeared. The suggested app simply gives a driver not found error.
There is another thread on the same topic where the only responses are all completely inaccurate including the assumption that the wrong answers solved the issue:
The specified item was not found.
As far as I can tell, a critical feature has been broken rendering the phone nearly useless. When will be the next update to correct this bug?