After upgrading Workflow Solution, Application Properties cannot be accessed. Application Properties are accessible and can be worked with in the Portal but are not available or not working in the projects.
Unable to access Application Properties.
Workflow 8.x
There is a known issue with Workflow upgrades due to a change in how Password type values in Application Properties are encrypted. Workflow installer does not address the change during upgrade process leaving passwords encrypted with the old method and preventing Workflow from accessing the Application Properties.
Note that the entire Application Properties profile is inaccessible as soon as there is at least one problematic password type value in it. Depending on situation, a problematic password value can also block using any Application Properties.
To resolve the problem first re-enter data to all Password type values.
If this does not resolve the issue, please also make sure Default values for these password fields are not set. To change these: