Compiling Shaders on every node change

So this is a bug.
I can not reproduce it in a new project.

My project I have updated from 4.11 which never compiled at the smallest change (Changing a constant for example) is now compiling all the time.
I have tried:
-deleting intermediate
-selecting everything in the content browser and loading it
-turning bAllowAsynchronousShaderCompiling to false in the baseengine.ini (Which does stop it but length of time to load the nodes is roughly the same)

In terms of what I have turned on, is default ‘Live preview’ is on while ‘Live nodes and Live Update’ is off.

This is really annoying to work with especially when working on a large project that has climbed through the unreal versions.

Did the .uproject file not get converted properly? Have the configs changed? (I doubt it as not many others are having issue).

Any help would be really appreciated!