I just made some more discoveries which may be linked to this issue. I observed that the last Stock Entry (Material Receipt) created for this company did not have any accounting ledger postings created even though it was submitted! Upon further investigation, I noticed that no serial numbers were created for any of the items received in that Stock Entry even though they are all serialized items!
I tried cancelling and amending but still the same outcome… no accounting entries and no serial numbers created. I then created a new Stock Entry for that company with one serialized item and submitted it. The accounting entry was generated but no serial number created (even though a pop-up message said it had been created!)
Anyone have any idea what could be going on here?