cenavt clearing GL hit with excess amount

Hi experts

In J1IEX  the following document got generated

as far as i know cenvat clearing should be reversed at the time of MIRO but the gl was posted with some excess amount

additional info

Tax code have 5% VAT

for relevant chapter id

Exc. rate  -12.5

ECS        -2

AT1         -1

i dont understand how system was calculating the both the amounts

please help me..

Thanks

sajid