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Research gives different results than Algorithm Pipeline?

I observed that the exact same Pipeline executed on a Notebook doesn't yield the same results on a backtest or Paper Trading the Algorithm.

Shouldn't it be the same?

2018-03-05 16:00 rebalance:170 INFO This week's shorts: NKTR, VXX, TVIX, UVXY
2018-03-05 16:00 rebalance:169 INFO This week's longs: GE, ALB, NTES, SQQQ