About 30-40 hoppers at my guardian farm have been permanently "disabled". I've been told by staff this is a known issue. In the past I've been able to go through a nether portal a few times and they start up again. This doesn't work anymore though. Is there any other way to get them to reset without replacing every one of them? I've tried putting a redstone torch near them, or putting items in and out of them, but they don't turn back on.
I hung out in the nether for 5 minutes then went back and it seems to be working now. If anyone has any other tips though I'd love to hear.
Are they collecting or transporting? If collecting - not sure, my 4 hopper timer bugs up a little now and then. If transporting though you can decrease the fouling by placing furnaces over them. Not sure why it works, but it seems to prevent it.