A device control command in SDK-based development combines multiple data points (DPs), but some DPs do not respond to the command. Why`?

The DPs in one device control command must not conflict with each other. For example, the lamp brightness and cold/warm DPs can be sent together. However, if on/off, brightness, and cold/warm are sent together, one or more of them may not respond. Therefore, it is recommended that you combine non-conflicting DPs in one command.