Hello.
Testing some systems, note that when the repeater receives a signal from the comparator through the detection of an object inside a barrel, it changes its texture for a bedrock line with which it can interact but without allowing the passage of a signal from redstone.
When the comparator is removed, the repeater returns to normal, leaving the passage of the redstone signal, but when the comparator is placed again the texture changes and also the properties of the repeater, since removing the signal from the torch that places the repeater retains the signal and transmits it.
Basically what can be obtained with this error that seems only of texture is that a constant signal is obtained which can be varied to more or less time. I have no idea what systems could be created with this problem, but I think it is something that they have not planned to happen.