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Kalmanfilter in IDE

Hi guys, new on Quantopian and just finished the Tutorial on Pipelines. after finishing the tutorial I have been trying to adjust the tutorial code to include a Kalmanfilter. I got this to work in the notebook enviroment but in the IDE I keep getting strange error codes. My suspicion is that it is related to how data is treated in a backtest scenario. Anyone has any tips to get this to work?