I am having the same issue as others have commented the last couple of days, and I saw the next post, which was posted by @Sunshine, In that thread it mentions if my router's model is not in the list from the post it could be a different issue, but I dont think so.

HW Version: Archer A20 v3.0

Firmware Version: 1.0.4 Build 20230728 rel.19537(5553)

My issue started probably a few days agos, but I just found about it yesterday because I saw a device still working after the Bed Time configured for that user. What I first tried was adding my phone to that Profile and see if it was still working, and it was still working, no blocking whatsoever, tried by pausing the internt, didn't work. Then, i tried creating a new profile with new rules, no luck.

I then went to restore my router by to factory settings, reconfigured the whole system, and a new profile, and it was still the same issue.

There was an update ready for my router so I updated the firmware, and that didn't fixed the issue.

Again this was perfectly working a few days ago, and without any change it stopped working, I updated the firmware only after I noticed the issue.

One more thing blocking the device using Access Control blocking works, but parental controls dont work.

Let me know if you need more information from me.