Cubase 8.5 : Track controls not rendering

I just performed the update to 8.5.20 Build 169 (64 bit), and now when I load old (or new projects), the track controls are not rendering.
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The project(s) still work and play, but I am forced to use the control panel on the far left, which has impacted my workflow. Any ideas?

Thanks,

Follow up on this, I found that by deleting my default preferences and from AppData and letting the app re-initialise them the problem went away.

Annoying, but hopefully this helps someone. Check this link to see instructions:
https://www.steinberg.net/nc/en/support/knowledgebase_new/show_details/kb_show/removing-the-preferences-of-the-sequencer.html