Red alloy wire cannot be directly attached to cover controller placed on pipe. Cover can only be triggered by connected block. GT version 6.10.07. [cover-bug]

That is weird. it should work. As a simple workaround, use a vanilla Redstone Repeater and place it AS A COVER on the Red Alloy Wire pointing downwards (or into whatever side you put the controller on). That will connect them. The same can be done with a Redstone Torch instead of a Repeater too, th…