Target don't trigger

Hello I face this issue lik every other day
Whenever I buy 1000 quantities or more my order gets triggered but my target is not executed and order is stil open even when my target is hit. MY target wont hit unless the stock will hit my target for 2nd or 3rd time or go in same direction as my trade.
I see that other people placing order for even more higher quantities have no similar issues like this and their targets are hit every time.
Why does this happen with only me ?

Explained here

My orders get triggered because i keep a buffer. I am saying my target don’t trigger even when ltp reaches there. Also, other people in my group trade at the same exact levels and they don’t face any issues. It has been now happening with me regularly