There is a workaround how to bring the names back via manually editing XML file.
If you open your plug-ins cloned policies for Inventory, Software, etc you will find several sections looking like following:
Last display name value is exactly the one to be shown in UI. If it is missing, as now, then Software Management Solution Plug-in for Windows (64-bit) - Upgrade
row is being used.
The simple workaround is to export policy, then edit XML file in some text editor, replace the missing row with the value of the policy and import back.
, where the policy name is XYZ
After that, once it is deployed to any client, you should see new name in Software Delivery tab Policy column.
Above workaround may be tricky in case of large number of cloned policies for every solution plug-in.
Issue is finally fixed in 7.6 HF3