Hmm, I can not see any those problems, neither with the current beta nor with the past release.

2014-11-24
2014-11-25
2014-11-26
2014-11-27
2014-11-28
2014-11-30
2014-12-01
2014-12-02
2014-12-03
2014-12-04
2014-12-05
Generate Chart - please wait... ok

Are you sure you produced that January day with your script above? Have you changed something with the historical price data?