DPS to Name mappings are now downloaded with devices.json starting with TinyTuya v1.12.8. If this DPS mapping is not correct then you will need to change the Control Instruction Mode to DP Instruction Mode.
This how-to will show you how to activate “DP Instruction” mode for your Tuya devices when using Tuya Cloud to pull data. This will result in getting the full list of DPS values and their properties for your devices.
Step 1 - Log in to your account on iot.tuya.com
There doesn't appear to be a way to globally set "DP Instruction" for all device types. You will need to select each device type and repeat the above step.
After 12-24 hours, you should now be able to poll the Tuya Cloud using TinyTuya to get the full list of DPS properties and values. Simply delete devices.json
and re-run the Wizard.