Workflows: Activity only shows "Workflows posted a new message"

Hi!

We have set up a workflow "Post to test channel when webhook received" which sends notification on failed tests from our build server to a Teams channel. The posts looks like this:

But the information in activity has not any useful information. How to get the header from card to be showned in activity instead of "Workflows posted a new message". Our users do not need to know what "Workflows" is, they would like to know which test case did not pass.

Is this something that can be fixed in the Teams software?