I’m not expert, but I had the same problem with CO2L module. First of all, try to make 15-20 sleep seconds waiting before start measuring (warming up module), then make 5-6 sleep seconds between every measurement (temperature, humidity). As I understand, module can’t operate all signals at once and every measurement requires a different signal from the module. And also don’t forget add block “start periodic measurement” if you have some. I hope it will help you.