Very busy gigging band, been using the CQ 18T for about four months five shows a week. Seem to be getting FX overheat and DAC errors more regularly and also have been experiencing random volume/gain spikes not to mention a few oddities from the CQ4U app randomly controlling another users mix even though it’s not assigned that mix. Wondering if all of these are related or do I have a faulty unit? I have been running an external fan after searching online, It appears to be a fairly common issue with these. Any help or tips would be appreciated.