Not sure if this is a hardware or software fault, but the audio level sensor seems to get stuck on one value on my board. For example overnight last night it continually read 99.08dBA. This morning I removed battery power and reapplied power and it has started reading again. This has happened a few times now. Has anyone else seen this phenomenon? and does anyone know a fix? Hardware wise the board seems to be in good condition (no corrosion etc…) and the connection between the 2 boards feels nice and firm.