Soft Proof not updating

[DJCoxsell]

Hi,

I'm trying to softproof in Lightroom, however when I change any sliders its doesn't update in the main interface. It does however in the preview window.
If I press proofing on then off, adjustments will then update.

This is annoying as I can't edit a proof properly

Before anyone mentions about turning graphic acceleration off it is already off and can't be turned on due to errors.
I'm using a MacBook Pro Mid 2009 on El Capitan.

Screenshot added to showcase what is happening with a major adjustment made to make it clear.

[JP Hess]

How much RAM do you have installed? How much  free disk space on your Mac hard drive?

[DJCoxsell]

8GB Ram installed.
154GB Available.

[JP Hess]

Seems OK. You might consider deleting your preferences file so that Lightroom can create a new one.

Preference file and other file locations | Lightroom CC and 6

[DJCoxsell]

I have just noticed that this only happens on a printer profile. Works fine on monitor profiles?

The preferences file isn't showing in my Library/Preferences folder.
Not sure why there are other adobe plist files there.

[DJCoxsell · Accepted solution]

Found the preferences file, no change however. I'm starting to think it may be the colour profile that is not working.
It's this one from Loxley, https://loxleycolour.blob.core.windows.net/images/colour-management/print-profiles/canvas/LoxleyColo...

[Jao vdL]

Indeed something is wrong with that profile. It doesn't work for me either on a more modern machine while all other profiles work fine.