digital signature is not valid

Hello,

we are using the dell repository manger (Version 2.2) to deploy Drivers and applications to our optiplex devices.

That worked fine but now i get an error during install of any Driver/application update to our devices.
We install the Drivers/application updates with dell command update.

The error is:

Update package digital signature is invalid.

Can someone help me with this error? The exe files which are downloaded from the repository Manager has a digital signature. I dont know why the Installation failed with this error.

At the Moment we use dell command update 2.1.1.

It would be great if someone can help me.

Greeting

Steffen

EDIT: it Looks like that happens only to our new dell 3040 devices and some dup packages.

For example the new dell command update package and the Intel Rapid Storage Technology Driver and Management Console Version 14.8.9.1053