Have you tried in the Sensorware app, for each sensor you can choose left or right handed.
Keep them all the same, I’m guessing right handed for typical setup. Then transfer the new settings. Change to one side, then back to make sure settings are transferred across.
For the foot sensor, if already playing base drum, (white light) sounds like already set up as foot sensors in Sensorware. You’ll notice as you turn your toes to the left, it will eventually turn yellow and control the hats pedal. Ie if set up as foot sensor it controls both pedals depending on where you point your foot. If you want as hat pedal, move further to the right and hold the calibrate button for a second. Then move back to comfortable position and it should now be yellow and controlling the hats.
Also depending on the DAW you’re using (GarageBand etc) in the Freedrum App you can change drumkit from left to right. Sounds more like a firmware setup issue as described above.
Keep in mind foot hat control not available in GarageBand.
If still not working then maybe a firmware reset. You can find some previous threads on this topic, or check Freedrum website Q&A.
Email support with full details of what you’ve tried if still stuck.