With the new firmware (v1.3.0) TP-Link added a new feature, Stateful ACL in Firewall -> Access Control. (I'm using Standalone mode)

I upgraded my ER605 router maintaining my previously used configuration. It has had no issue regarding this but yesterday I wanted to test something and therefore I needed to change one ACL rule. Then I realized that I couldn't make changes. All I wanted was to change the effective time (from Any to Night).

When pressing OK it points me to an alert to define States and change it from "---" to checkmark one or more of that four options.

I had no idea what to do but when I tried to mark just New, it still didn't let me save the changes.

Later I checked an emulator on TP-Link's website and saw that whenever you create a new rule (which I didn't attempt to do), at the moment of choosing either Block or Allow, it automatically sets either 3 or all 4 states marked.

As I say, I have no clue how it actually works, so I would not mess with it if not necessary but the fact that the update* doesn't present the rules correctly, concerns me.

*I can't verify if the State field remained with "---" or the update process did the job right and the problem happened only because after a reset I restored the config (that had been saved in previous fw version). Unfortunately I did not backup the config after updating to the new firmware, my bad...

My question is, what to do now? Should I leave everything as it is? Should I change the States field in all the rules from "---"?

And if so, what to checkmark? Or simply should I just change the Policy first (back and forth), so it automatically sets the right form for States?

If I had more spare time, I could also try downgrading the router to previous fw, restoring that same config (backed up on previous fw), updating to the new firmware and see what is set for States.

Or if anyone could check this in their router for me, please?

Is there any instruction guide for this new feature somewhere? I haven't found any yet.