If the humidity and temperature is combined in one probe. One of two things is happening.

1. The probe is under the substrate and will show the temperature of the cage floor but the humidity gauge will give a false reading because is buried in the substrate.

2. The probe is on the cage wall and will show a closer correct number for humidity but it will show the air temperature and therefore gives you no indication what the cage surface in the hide is.

Now if they are two different probes and the temp probe is under the hides over the uth. Check the batteries. Sometimes low batteries will give you incorrect data.

That is important because the number you set your tstat to does not necessarily mean that is what your snake is getting. Or that the tstat is working correctly.

Just last night my brb setup showedlow uth temps. I Checked everything and it all seemed to be in working order but I figured out the tstat was not delivering the right amount of power to the uth. Lucky for me I just got a Herpstat 4 and the probe is really long.

I heavily recommend a temp gun as well. It has proven an invaluable tool and saved my butt last night. That and the fact that I like you watch my snakes very closely.

I also go by "one is none" meaning I try to have a spare everything. So if like last night something breaks at midnight I can make things right.

All that said your snake could just be acting alittle off. But I would check your tstat and make sure it is working right and check all the thermometers batteries.