Hello.
It has been more than 2 years now. Does any latest version of MC support IB Combo orders yet?

I have faced the same problem. It looks like Q_TotalVolume (DailyVolume) gets updated only once every second. It does not tick at all. Your prints confirm the same.
Tested with IQFeed.

This is not just data that is not supported. Any calculations in PowerLanguage, even when ComputerDataTime (that produces millions of pulses every second) is used, are also limited/downgraded to 1 second precision. Correct me if I am wrong.