When you set executable(s) in 'Install Behaviour' it should show as 'In Progress' rather than 'Error'
If you set executable(s) in 'Install Behaviour' and the installation subsequently stops because of the status 'One or more processes are running and prevent enforcement action' due to a user having the executable running, these should show up in the 'In Progress' section of the deployment status rather than 'Error'.
This is because the installation has not 'failed' but is waiting for the user to close the application. Once the user closes the application the install will proceed.
Having this status show as 'Error' is confusing as you may think there are a lot of failures when in fact it's behaving as intended when you don't tick the 'Forcibly close running applications' box during deployment.