Not saving preset in ableton

[guidewire]

I have a track with 3 pigments channels.  When I save my Ableton project, close it and reopen it 2 of the channels seem to reset to the default patch and the other one seems to preserve what it was originally set to.  I've set the lost channels back to what I was using and saved again and reopened the application and I still have those 2 tracks reset to default. What's going on here?

[clearscreen]

Having a similar problem in Bitwig - Pigments often won't let me save a new preset, or won't save the current plugin state on close...

[guidewire]

Ya the plugin state is going back to "ring my bell"

I was able to get the selected presets to stick yesterday by saving the preset, but normally the state should stick. I guess I can't rely on this until it's fixed\ 

[clearscreen]

It seems pretty random. I can save "ring my bell" ok now, but I cannot save the preset "Funeral's Dub Party" at any stage. Really annopying, as I've modified it heavily and getting something great out of it, but I have to recreate it every time I shut down. 
Happening in Bitwig and Live 11 under WIn10 using VST3. Really annoying! Might try a reinstall and see if the VST2 version works better...

[clearscreen]

Reinstall hasn't helped - even the standalone versions doing it. And it seems to be fairly randomly happening on some presets? Very weird...