Sounds like the green stuff is about as reliable as a screen door on a submarine. My buddy used some on his deck and it looked like a dried-up riverbed after two months. All that "eco-friendly" talk doesn't mean much when you're redoing the job every season. What's the point of saving the planet if you're just making more trash from failed repairs?
Yeah that tracks with what I've heard from a few guys. Were you using it in places with a lot of moisture or big temp swings? I wonder if the green stuff is just way more picky about where it cures.