You mean to say system is asking for manual valuation (Accepted or rejected) once you hit enter after entering the value.
What is the scope you have maintained in control indicators of this MIC? As I told earlier, this should be set as fixed for auto valuation (since you have said about correct set up everywhere else).
After modifying the MIC, you need to re assign this to your inspection plan (if it is incomplete copy model). Reset your inspection lot using QAC3 or create new lot to see the changes.
Regards,
ntn