Channels will not update

I'm taking a deep breath.  I must be missing something obvious.

I have 2 channels.

one has been around a few weeks - when I started i could make updates to the JSON and it would show up.. within an hour to 2 days (wtf..).  But at least I could see changes.

Now - it's been since last week - and the changes still do not show up.

The preview does not match what shows up on the device.

I have tried every version of system update, unplugging it for hours, remove /add channel. etc.

I'm more than a little irritated at this point.  

I also have another channels I was putting a quick test of a live feed into.

that channel - even **bleep**ing worse.

i've gone through 8 different JSON files (with 8 different names).

tried system updates, etc...

I've deleted the channel and remade it as a new one 2-3 times.

Never changes.

WTF do i have to do to get my JOSN changes to appear real-time? 

And this isn't just me - 2 other people verified the channel is still the old version on their devices.