Battery Management Studio & Chemistry Update ("target bqz container is old")

Hello all,

I have Battery Management Studio 1.3.45 connected to a bq27541-G1 device. After changing the chemistry (Chemistry Programming tab, clicking on "Update Chemistry from Database") I get the message: "Successfully programmed chemistry. The target bqz container is old and needs to be updated". What does this tell me?

After that, I updated the chemistry data using "Help -> Update Chemistry" to Chemistry Version 465 (it was 346 or something like that before) using a zip-file in sluc564ax, and tried again, only to get the same message as above. Do I have (or does this suggest) to update the firmware of the device? Where can I find it?

Jörg