MIRO posting is not so simple where you are referring to lights..
You need to check all the data before posting the MIRO in final screen where you find the some errors even the green light appears in MIRO main screen.
I don't think so you posted MIRO and you got assumed that it was posted.
Kindly share the screen shot of MIR4 screen shot with detail accounting entries and also service entry do confirm your query.
Rgds,