interesting observation; my warp lights work 99% of the time....and ive had invisiglass since day 1.

Sounds like something that could be fixed with a "blinder" of sorts.

My warp ramp lights have always worked 100% and I have Invisiglass.
Vengeance ball detection seems perfect with 1.41, but missed several times with 1.3. Could be a coincidence, not enough games to say for certain.

Could it be the glass allows you to see them better due to less reflections?

Please put your old glass back on and report. That is an interesting observation. I don't think I hardly ever notice my lights during gameplay but when I've taken off the glass and roll a ball up the ramp it comes on almost every time. I thought maybe I was simply missing it with all the other flashing going on.