it will be helpful to share your KPI formula to know how it is. sometimes some main counter/objects/formulas are not set properly. in TEMS you can see sometimes that in a logfile the call End number is more than call Setup, for example call end= 104, call setup=88 which shows something new…, but if you check the call attempt/call attempt retry, you will find the issue(even you can find the missed counters in formula from this logfile).