DMT Issue Material

One of our shop floor guys has just raised a question with regards to issuing materials via the DMT. He has issued using the below DMT script, however when looking at PTHT the actual transaction has been performed from another Bin.
Anyone got any ideas as i have never seen anything like this before?

I’ve not DMT’d into Issue Material table yet. Does it make a difference if you change the order of columns, i.e. warehouse column before bin?

It may not make a difference, but occasionally I’ll run DMT and it doesn’t do what I want, but then I do something simple (like repeat the steps I just performed, and suddenly it does what I want).

That is strange though, since usually with DMT you’re importing exactly what you want to see.