the application and service fields are mutually inclusive (like an AND operation)
if you have
apps web-browsing, telnet , ping
this means the applications must match web-browsing or telnet or ping AND their destination port must be 8020.
so if you add ping in a policy with a service set to a specific port, ping will fail as it can not match the destination port. any application not matching the destination port of 8020 will also fail
you'll need to create separate policies so ping can be set to application-default (because, if ping does match a port, something is terribly wrong)
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