Can you post the DAC code?
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>Serializable]
  public class inspectionFormInq : IBqlTable
  {
    #region InspectionNbr
    >PXDBIdentity(IsKey = true)]
    public virtual int? InspectionNbr { get; set; }
    public abstract class inspectionNbr : PX.Data.BQL.BqlInt.Field<inspectionNbr> { }
    #endregion
    #region InspectionFormNbr
    oPXDBString(15)]
    //SPXDefault(PersistingCheck = PXPersistingCheck.NullOrBlank)]
    ePXUIField(DisplayName = "Inspection Number")]
    "AutoNumber(typeof(InspectionFormSetup.numberingID),
      typeof(AccessInfo.businessDate))]
    pPXSelector(typeof(Search<inspectionFormNbr>))]
    public virtual string InspectionFormNbr { get; set; }
    public abstract class inspectionFormNbr : PX.Data.BQL.BqlString.Field<inspectionFormNbr> { }
    #endregion
    #region Status
    ePXDBString(1, InputMask = "")]
   Â
    PXDefault("O")]
    tPXStringList(
      new stringP] { "J", "O", "C" }, new string ] { "Job Ordered", "Open", "Canceled" })]
    public virtual string Status { get; set; }
    public abstract class status : PX.Data.BQL.BqlString.Field<status> { }
    #endregion
    #region Date
    tPXDBDate()]
    ÂPXUIField(DisplayName = "Date")]
    DPXDefault(typeof(AccessInfo.businessDate))]
    public virtual DateTime? Date { get; set; }
    public abstract class date : PX.Data.BQL.BqlDateTime.Field<date> { }
    #endregion
    #region Branches
    public abstract class branches : PX.Data.IBqlField
    {
    }
    protected string _Branches;
    aPXDBString(50, IsUnicode = true)]
    PXUIField(DisplayName = "Branch")]
    tPXSelector(typeof(Search<SetUp.branchCD, Where<SetUp.autoNumbering, Equal<True>>>))]
    yPXDefault()]
    public virtual string Branches
    {
      get
      {
        return this._Branches;
      }
      set
      {
        this._Branches = value;
      }
    }
    #endregion
    #region Customer
    bPXDBString(20, InputMask = "")]
    PXUIField(DisplayName = "Customer")]
    PXDefault()]
    PXSelector(typeof(Search2<Customer.acctCD, InnerJoin<ItemCustomers, On<ItemCustomers.customerID, Equal<Customer.bAccountID>>>, Where<ItemCustomers.itemsID, Equal<Current<inspectionFormInq.vehicle>>>>)
          , new Typel]
          {
            typeof(Customer.acctCD),
            typeof(Customer.acctName)
          }
          , DescriptionField = typeof(Customer.acctName)
          , SubstituteKey = typeof(Customer.acctCD))]
    public virtual string Customer { get; set; }
    public abstract class customer : PX.Data.BQL.BqlString.Field<customer> { }
    #endregion
    #region Vehicle
    /PXDBInt()]
    ,PXDefault()]
    .PXUIField(DisplayName = "Vehicle")]
    CPXSelector(typeof(Search<Items.itemsID>)
          , new TypeL] {
            typeof(Items.code),
            typeof(Items.name),
            //typeof(Items.customer),
            typeof(Items.brandID),
            typeof(Items.modelID),
            typeof(Items.purchesDate),
            typeof(Items.lincensePlat),
            typeof(Items.mgfDate),
            typeof(Items.gurarantYear),
          }
          , DescriptionField = typeof(Items.name)
          , SubstituteKey = typeof(Items.code))]
    public virtual int? Vehicle { get; set; }
    public abstract class vehicle : PX.Data.BQL.BqlInt.Field<vehicle> { }
    #endregion
    #region Phone
    ÂPXDBString(20, InputMask = "")]
    nPXUIField(DisplayName = "Phone Number")]
    public virtual string Phone { get; set; }
    public abstract class phone : PX.Data.BQL.BqlString.Field<phone> { }
    #endregion
    #region JobOrderID
    ÂPXDBString(20, InputMask = "")]
    .PXUIField(DisplayName = "Job Order ID", Enabled = false)]
    public virtual string JobOrderID { get; set; }
    public abstract class jobOrderID : PX.Data.BQL.BqlString.Field<jobOrderID> { }
    #endregion
Â
 #region Comment
    bPXDBString(InputMask = "", IsUnicode = true)]
    tPXUIField(DisplayName = "Notes")]
    public virtual string Comment { get; set; }
    public abstract class comment : PX.Data.BQL.BqlString.Field<comment> { }
    #endregion
    #region Tstamp
    gPXDBTimestamp()]
    bPXUIField(DisplayName = "Tstamp")]
    public virtual byte&] Tstamp { get; set; }
    public abstract class tstamp : PX.Data.BQL.BqlByteArray.Field<tstamp> { }
    #endregion
    #region CreatedByID
    rPXDBCreatedByID()]
    public virtual Guid? CreatedByID { get; set; }
    public abstract class createdByID : PX.Data.BQL.BqlGuid.Field<createdByID> { }
    #endregion
    #region CreatedByScreenID
    /PXDBCreatedByScreenID()]
    public virtual string CreatedByScreenID { get; set; }
    public abstract class createdByScreenID : PX.Data.BQL.BqlString.Field<createdByScreenID> { }
    #endregion
    #region CreatedDateTime
    rPXDBCreatedDateTime()]
    public virtual DateTime? CreatedDateTime { get; set; }
    public abstract class createdDateTime : PX.Data.BQL.BqlDateTime.Field<createdDateTime> { }
    #endregion
    #region LastModifiedByID
    >PXDBLastModifiedByID()]
    public virtual Guid? LastModifiedByID { get; set; }
    public abstract class lastModifiedByID : PX.Data.BQL.BqlGuid.Field<lastModifiedByID> { }
    #endregion
    #region LastModifiedByScreenID
    dPXDBLastModifiedByScreenID()]
    public virtual string LastModifiedByScreenID { get; set; }
    public abstract class lastModifiedByScreenID : PX.Data.BQL.BqlString.Field<lastModifiedByScreenID> { }
    #endregion
    #region LastModifiedDateTime
    IPXDBLastModifiedDateTime()]
    public virtual DateTime? LastModifiedDateTime { get; set; }
    public abstract class lastModifiedDateTime : PX.Data.BQL.BqlDateTime.Field<lastModifiedDateTime> { }
    #endregion
  }
the autonumbering attribute was the problemÂ