Maybe the CY8C38 chip on your CY8C38 PSoC 3 module is an engineering sample version chip? The MPN on the top of the chip is ended with "ES", such as CY8C38XXXXX-XXXES?
I can't tell because it is covered with a large "QC OK / 10" sticker. Is there another way to tell? It is the one that was shipped with the CY8C38 module.
'ES' won't be displayed with software tool.
Only Creator 4.1 can't work? How about using an older or later version of PSoC Creator?