Thanks, that explains the change.

For my setup, IBKR should remain the execution broker, while EODHD should provide both the current price and historical data.

Is this the correct Symbol syntax for AssetsZ9.csv?

*-STK-SMART-USD!EOD:*.US!EOD:*.US

For example:

AGG-STK-SMART-USD!EOD:AGG.US!EOD:AGG.US

Or does the EODHD source require a different prefix?

My goal is to preserve the previous Z9 Trade workflow: Z9 calculates and executes the rebalance through TWS/IBKR, but does not request US equity market data from IBKR.