When trying to edit or create a software resource, error 500.19 is thrown.
HTTP Error 500.19 - Internal Server Error
The requested page cannot be accessed because the related configuration data for the page is invalid.
A failure during the upgrade did not replace the web.config file from version 7.5 with the 7.6 one, located at x:\Program Files\Altiris\SoftwareManagement\Web\.
We copied a known good version of the file to replace the old one (attached).