Problems with finding device on ESP 32

[tsb4]

Greatings,
I am trying to use the MLX90640, developed by SparkFUN, with an ESP 32. The early attempts appeared to work fine. However, it started to present some problems, with a lot of values NaN and other weird values, and now, the sensor is not capeble of being recognized by I2C ESP 32. Is there any modification I should do to be able to use it?

[movingfox]

I've encountered the same problems with an ESP32 module (NodeMCU-32S). Have you fixed it ?