I recently used blocks of grass to build a wool farm, so these blocks were driven by a piston, in a system where several pistons pushed blocks of grass causing them to return to the starting position after a certain time, reusing it to feed the sheep. But in the last update the system stopped because two of these blocks became "invisible" to the touch, but viewed physically, these being indestructible and unbreakable, where I tried even through the use of dynamite to eliminate them, but to no avail. I wonder if it is possible to solve the bug, because these two blocks (one of them went dark) are bothering the operation of my farm. Thank you!