If you read the report for Lancaster it says:
Lancaster University
Category 1 in 1998 then category 2* at the beginning of 1999 then off the list from September 1999.
Historically Lancaster has faced severe financial difficulties through lack of funding, particularly in the 1990s, but now the University's financial position is pretty strong and they're in surplus.
This is of course partly due to increased government funding but also because students themselves are now lumbered with the cost of tuition fees which plays a larger part in University funding today.