No mkt data after noon EST in historical mode

I have a python script that would use backtrader to get minute mkt data in historical mode and react accordingly. This script worked fine back in Jan. I just picked it up again today, and after upgrading to backtrader 0.15.0 (the latest), my script is now only giving me mkt data until noon everyday in historical mode. Would anyone happen to know why that is?

Thank you

perhaps, this might be an issue backtrader may be able to help you with?