The orders are being automatically grouped and sold at the lowest reached Take Profit.

 

When placing a buy order for 100 units at price x with a Take Profit set at x + 2, and successfully buying, then subsequently placing another buy order for 100 units at price x with a Take Profit set at x + 1, and successfully buying.

When the Take Profit of x + 1 from the second buy order is reached, both my orders are sold at x + 1.

Shouldn't only my second order be sold?

 

Are you using a US broker that follows FIFO rules?

Since 2009, hedging is not permitted for US traders.
          NFA Enforces FIFO Rule, Bans Forex Hedging in US Forex Accounts - Trading Heroes (2016)
          FAQ: FIFO in the Forex Market - BabyPips.com (2011)