Subject IBO 4.9 build 5: Blob fields contents are not shown in Edit field

I have just installed the new Version 4.9 build 5 from IBO under Delphi 7. Now Blob Memo field contents are not shown in TDBMemo components (same for Developer Express Components). After a refresh of the Database or change to Edit mode the contents is visible and editable.

With the old IBO Version 4.8 build 7 I used it works normal.

Any suggestions are welcome.