DOSBox Pure: not detect MPU-401 (?)

Libretro Cores
#1

Hi friends,

How are things? I hope you are all well.

Pls, I can’t open the game “Blood (1997)” via “DOSBox Pure”. It is the only game that gives me an error: “could not detect MPU-401”. However, I’ve tried with “DOSBox SVN” and the game runs without problem. I really do not understand at all. Pls see the picture:

https://i.imgur.com/6JVcT6N.jpg

I would appreciate any help.

THANKS IN ADVANCE.