burnsy sent in a 1-liner expecting a full explanation. Be detailed in your request (like tec's was worded). Send a 1-line ticket, expect a 1-line response.
I submitted a similar ticket a few weeks ago. I had a guy hit, got injured on the play, was replaced at first base, and then he hit again when his spot came up in the lineup a second time that inning.
Their response (their FIRST response) made lots of sense. They said it was a known bug, and that the sim injury replacement logic takes place between innings. Its on their to-do list.
I expect them to fix it with their normal yearly release cycle, around the end of this calendar year.