Thanks 
I think I have tried Gyroid at one point, can’t recall if that was a successful one or not though 
presumably that’s a suggestion to stop the parts coming loose?
The build plate is pretty much always 220c, I’ve never manually adjusted it, but nothing actually comes off the plate, the supports stay in place & the parts come out if the supports, it’s bizarre 
Slowing down the bed is definitely on my list of things to try though 
So are all of your suggestions related to the parts coming loose? Or could those things cause the layer shift too? That one really has me baffled