Sage 200 cloud Pro 12.00.0031.
After importing stock records and stock opening balances, customer created sales orders. After creating a BOM for one of the products, customer checked the 'Create Works Order' checkbox on the sales order line item and saved the item. After clicking 'Save' on the sales order entry screen the usual dialigue for customer order number etc is displayed, then a progress bar called 'Amending Lines' appears. After 30 seconds the 'Sage - Unexpected Exception' message appears. There is no way to exit from the sales order other than terminating the Sage 200 client process.
The works order seems to have been created correctly. However, on trying to save the order again another works order is created, so clearly the order isn't getting updated with the fact that a WO exists.
Has anyone seen this before? I've tried getting a SQL profile and I've repeated the steps from that in SSMS and all works without error (in a dummy company set up for the purpose). If I run sp_who2 while the 'amending lines' progress bar is displayed I can see there is one SPID which is blocked, but the blocking SPID is sleeping, awaiting cmd and seems to be a SELECT.
Any ideas how to troubleshoot this greatly appreciated.