Wait, where is the difference between a 'normal' situation and a bugged one? Is it that you only experience this bug in constructs or is it something else? The main thing you need to do when submitting a report like this is explain how to reproduce it. You've done a good job of explaining the situation but I can't see how you're causing a bugged result rather than a normal result. Edit: Oh hey Godgiver, I just checked who I was talking to and now I feel silly for talking as if you're a noob :/
I have been fighting him a lot lately with my alt.
My guess is he is using block tactics. SnipersEnd is a hacker, I hit him with a regular Logic Cannon 1.0 and it does about 140 points of damage then the next time I do it, it does 40 points of damage. So it probably is him using tactics rather than him being bugged, with Solid as a Sniper Line Up increases damage when I use it.