1. What actually happened or you saw:
When you are prompted to Allow or Block internet access for an application that has no permanent rule, your decision will be remembered for the duration of such application’s lifetime (i.e. until its process is terminated). That’s fine, however…
2. What you wanted to happen or see:
…If it’s technically possible, it would be great to have a button/option with which you could just “flush” current (temporary) permissions. I.e. even if a process/application still lives at some point, and it has no rule, and is currently able to connect to the internet because you clicked/tapped Allow (or maybe being blocked because you chose Block), clicking/tapping this button would purge all temporary permissions (so you would again be prompted to allow/block in this case).
3. Why you think it is desirable:
Because with Windows 10, things have been getting more complicated security/privacy-wise.
4. Any other information:
Keep up the good work.