Peter, as así posted before, Not every Daz user has the same configuration. For example, the default configuration so that the Reallusion folder can work in Daz automatically determines that EVERY Daz user has Daz Studio installed in the C:\ drive as a default. On my system, I have a small SSD drive for my Windows boot drive. Every other application is in either my D, F J or L drives. The only time I got the ver. 4 Duf to work was when I installed Daz on my laptop, which, of course, defaults only to a C:\ drive. In fact, I even installed Daz Studio 4.10 on the laptop and the Duf didn't work. Only when Daz Studio 4.9 was installed on the laptop was when I was able to get the 58 facial expressions. Now, I ask you, what version of Daz Studio are your staff using. It's difficult to get the same results if we don't know what the ver. 4 .Duf was developed on.
Apologies for the late reply.
I'm using Daz Studio 4.10. I have the Daz Studio program files installed on the C: drive but all the Daz content is on the D: drive to save space on the SSD. With this setup the DUF files work perfectly when the steps I provided previously are followed carefully.