TP not triggering until candle closure

Hi Forex Tester Team,

I noticed in a back test I completed today that it appears the TP price set for a trade does not trigger until a candle prints that closes beyond the TP price - rather than when touching that price (or, technically, when slightly exceeding it due to spread/slippage) as should be the case.

My trade was a EUR short on the 4-hour chart, and price blew through my TP price by over 40 PIPs and then wicked up and closed just above my TP price, but my TP order did not trigger with this candle as it should have. It wasn’t until the following candle that closed well below my TP price that the TP order was triggered and my trade was closed.

Please see screenshot to illustrate what I am referring to:

The final candle that printed in this screenshot should have triggered my TP and closed the trade, but it did not - evidently, because the candle wicked up and ended up closing above the TP price.

Note: the following candle that did close well below my TP price did trigger my TP order and closed the trade.