the distance between the nozzle and buildplate on my bigbox seems to be changing every single time i start a print. its either too high or too low, i adjust it in the offsets and then it is perfect on the print i do right after changing the value, then on the print after its off again. how does the IR sensor work? could it be fucking up? would the glue i put down on the buildplate fuck the sensor up somehow? I have no idea how or why this is happening.