I am creating a crypto strategy that will utilise a dynamic universe, so I have set up a basic script to log the universe constituents over time as a first validation step.

It seems to work as intended through previous years, but i have noticed that the data / universe constituents appear to be unavailable for approximately the last 3 months / 90 days (the log outputs cease at Dec 11th 2023 to current date).  Am I doing something wrong or is this a fundamental limitation in the data source?