Some time Last inventory date is not updating in LS03N ---

Hello,

We are using Dynamic cycle counting method for inventory. Some time Last inventory date is not updating in LS03N. It was showing old date and hence in LX26 system is suggesting the bin for inventory again and again. Sometime last inventory record gets updated correctly. Why does it happens?

My understanding is, when I count the material today as per ABC indicator in material master, then system should update todayu2019s date as last inventory date. Am I right? If yes then why system would is not updating the record sometime?

Thanks

Milind