@BladderFox 

Hello, theoretically, the bedtime won't apply to the device which has been removed from this profile, we can do some troubleshooting to narrow down this issue and try to fix it. 

First, try to tap the pause button after your son's profile and verify whether your wife lost connection. You can refer to the step 7 of the instruction below to do that. 

https://www.tp-link.com/support/faq/1598/ 

Second, please confirm the time control settings on your wife's profile; make sure that there is no limit; and you can delete this profile and re-add it. 

Third, you can delete your son's profile and re-create it; this time, add your son's device only and verify whether it work. 

May it help. 

@BladderFox 

Thanks for your valued reply. 

Please show us the screenshots of the whole parental control settings page, especially the time limits/bed time settings. 

Thanks in advance. 

@BladderFox 

Thanks for your reply. Sorry to respond late.

That is a little weird that it completely reset itself; while cause it is been reset already, have you ever tried to reconfigure it and set up the parental control feature to give it a shot? 

Do you have the same issue then? 

Good day. 

@Simatic 

Hello, how did you set up the parental control? Could you please show us the full screenshots of the whole settings?

Have you ever tried to delete the parental control profile for the specific device and re-create it? 

Besides, you can reboot the Deco units to give it a shot as well. 

Good day.