BME680 Strange humidity output

[tomjones]

I am testing the BME680 sensor with BSEC library. In "regular" conditions the output for humidity and temperature seems kind of reasonable, but when I put it in a sealed plastic container, this is what happens (yellow line marks the change): 

How can it be that in a sealed, small container, the humidity starts to increase? I can understand that the temperature changes since the heat has nowhere to go, but humidity? 

[BSTRobin]

Hi tomjones,

Could you help give feedback to us? Thanks.

[tomjones]

i use BSEC 1.8.1492. I only have one sensor so unfortunately can't compare the results. Once the sensor is out, it does return to normal. 

[BSTRobin]

Hi tomjones,

What do you mean "Once the sensor is out, it does return to normal."?

[tomjones · Accepted solution]

i mean once it is out of the container. Anyways, i doubtwe will find any answer to this so i close the discussion.