[ShadowTek]

My shadownox folder is still there as it was (I never touched it)
I temporary renamed the original madnox folder and tried yours, then after downgrading kodi, went to switch to my personal skin and nothing in the media folder will show up?

Could it be something that Jarvis did or upgraded?

It doesn't have anything to do with your version, I'm guessing it has to do with going from Isenguard to Jarvis and back again maybe?