They haven't yet failed to make a payment, it's due on April 1st. I cannot find any back door escape clause in the Completion Statement, so let's wait to see what Baker Tilley have to say on the 2nd of April.
( The Completion Statement should be available via UHY's website, but mysteriously at the moment it seems to be unavailable - it can be found on Google QuickView -
https://docs.google.com/viewer?a=v&q=cache:-slxd4lcVKgJ:www.uhy-uk.com/assets/media/download/portsmouth%2520reports/Completion%2520report.pdf+portsmouth+CVA+schedule&hl=en&pid=bl&srcid=ADGEESjbAZ-xLp4PmTcbbOFjDWq359YLxXl4HIz-7DM06B3VqAaxaezYuWg4tS2z5SWlbJhMLaUBG4culdp8CGCJvsO11QzdK8Q84Aqn3zyh8CY7NhW9DSi4UjGrb2ZKisk2dd1PZgob&sig=AHIEtbQOnx02gxLnGZsw1OYrtj7iiPJlLg )