"Error on reloading data: E. Could not connect to History socket (Panic)"
If I re-download the same instrument list, it might download the entire list with no errors, or it might error on a different instrument, but the errors if they happen seem to be random and not related to a particular instrument.
Frequency is on the order of 1 error out of 100 symbols when downloading 5 days of 1-minute data.

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