I was using redstone repeaters when i accidentally placed a repeater sideways, when the repeater behind it was powered, and the repeater texture ( the "torch" part) became a sort of, slab of bedrock. I took a screenshot.
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Duplicate of MC-4449, please use the search function to see if your bug has already been submitted. Currently over 55% of tickets are being closed as duplicate.
it is not a bug. It is made to block some signals!