Default order setting issue (X++)

Hi everyone,

My issue is I'm looking at the default order settings for two separate released item. On the General tab the Inventory site has a value for 'item1' while 'item2' is blank. In the InventItemPurchSetup table both records' InventdimIdDefault field are referencing the same InventDim record. The referenced InventDim record's InventSiteId field actually doesn't have a value so I'm confused as to how 'item1' is displaying a site ID. 

I added the InventItemPurchSetup records for 'item2' through code by looking up the itemId for 'item1' then calling buf2buf and changing the itemId to 'item2' before calling insert(). 

Thanks in advance for any help.