Both the white space (CORE-3181) and the tooltips remaining open (CORE-3201) are resolved in the final release of 4.6. They should now remain open for 2/10 of a second unless you hover over the body of the tooltip in which case it will remain open until you mouse off.
Are the URLs to the sandbox, live, and refund end-points identical to what they were before, but just at the EU TLD?
It looks like the US DOJ charged the company with a felony and took down their website for processing transactions without a license, so that's probably why they moved operations to their EU domain.