So today I see there are 2 working 90 day websites.
On the 4th I registered and got access, completed an application and saw status is at Pending.
Still at Pending this morning, I called my IO (as I usually do to move the status to Approved), gave them my passport number but she told me she could not see anything for me. I was to call back later while she checked.
I opened the old system out of curiosity, and lo and behold I got to the Pending status here too.
I called back, she checked again and after a few minutes, approved my application. I downloaded the Next Appointment form it generates so I now have a new date in March.
In the meantime as I type the new application is still Pending.
This leads me to believe my IO did not get the memo about a new system and are still updating the old one.
If the new one finally gets approved, I will get a new, new appointment slip which should have the same date, so I am not too bothered now. Job done for another 90 days.