I'm using an Express 24/48 board, and I'm having a problem where, randomly, some submasters and some channels will go full when their slider is set to 1% or higher. I have checked, and the issue is not the dimmer profiles -- they are all set to linear. Furthermore, the problem does not appear to be with specific dimmers; e.g. the sliders for channels 2, 5, and 11 all work okay, but my submasters containing those same channels is affected by the problem.
Does anyone know what might be going on here? Any help would be much appreciated!