hello, i have a big problem with the asi2600mc pro. in two nights I had a drop of water on the sensor. the sensor was cooled to -20 degrees and the dew heater switched on shortly before the recording. Obviously there is moisture on the cover slip inside the camera. the glass does not fog up, but unfortunately the sensor is affected. does someone have similar problems with this camera or a similar product or ideas what I can do differently? Thanks in advance.