'drysound/' is not a class ('fireLightDuration' accessed)

[dar 12]

'drysound/' is not a class ('fireLightDuration' accessed)

get this error message every time on mission start/ editor preview. Most times it works hitting the continue/ok button and the mission continues but if the mission contains an intro movie/scene or similar, the error field can not be closed and I have to manually shut down the arma2OA.exe process.

It appears since I am using JSRS, ACE and GL4 together. Google doesnt give me a solution, so I thought try it directly.

Any way to solve this? Its really annoying, even if the the mission works afterwards.