Hi there not sure if this is intentional to prevent lag or is an actual problem but i have created a cobble stone generator it works for a shot time maybe 10 to 15 seconds then the redstone dies is this a problem ?
this was indeed intentional, to prevent this, make sure that you either use a clock which doesn't involve any redstone dust (which there are plenty of, especially ones including observers) or make sure that there is at least a 28 tick delay between the redstone activations, as far as I know 28 should be enough(7 repeaters set to 4 ticks). -Shadoe