Segments do not work in 3.01

After upgrading to the new 3.01 our segments have stopped working. Has this happened to anyone else? We have a big installation with high traffic. Perhaps somebody can test and confirm that segments are working or not working?

For example I can see that a page gets over 25 000 pageviews in the report Pages in October. When I apply a segment including the page and a time period of October to December, the page gets zero pageviews in October. But the segment shows pageviews in December.
Something seems to be wrong with the segment function. If you need more details, like printscreens, let me know I will send it to you.

Best regards,