URL disappeared from .co.uk (web) but not .com or .co.uk

[Seoering]

Hi.

Just wondered if you've ever come across this phenomenon:

Google.co.uk (the web) - URL does not appear and subsequently website has dropped to 200+
Google.com - URL appears and website is on page one
Google.co.uk (the tab UK) - URL appears and website is on page one

So my question is:

Why is this happening?

I believe this could be a temporary shift as it is not like the URL dropped in position - but simply cannot be found.

No dodgy linking. No change in Geo targeting. The URL simply cannot be found when using Google.co.uk (the web).

Thanks in advance for your feedback.

[Seoering]

Just one small edit on this...

Turns out that the URL is returning for:

blue widget (double space in between)
blue widget_ (space at the end)
Blue Widget
BLUE WIDGET

But just not:

blue widget (no spaces)

Any thoughts?!

[Seoering]

Anyone have a view on this? Still no change.

Find it very strange that the page has totally disappeared from one filter on Google. Has anyone else ever experienced this?