If your smart plugs are not turning off or on correctly during an #OhmHour, there are a few things to check:
The first thing to know is that your TP-Link devices need a strong, solid Wi-Fi signal to operate correctly. You'll want to make sure your plugs have a fairly clear line to your router, and that they are not too far from your router as well.
Second, do you have a schedule set up in Kasa that could potentially conflict with an #OhmHour? We have a thread about this here: https://forum.ohmconnect.com/discussion/comment/5339#Comment_5339
If you're still having trouble with your devices not behaving correctly during #OhmHours, please contact support so we can investigate for you.