There seems to be a newish bug in Minecraft where redstone torches burn out sooner than they ought to, and never recover. (I think I heard that this can happen if you use
/time set, but this is a single-player world.) I haven't been able to find any info on Minecraft Wiki about it.
How can I prevent this from happening, and how can I repair the problem? (If I remove and replace a torch, then it burns out the very next time it toggles.)