teletubby65

Hi guys, I have an issue with the canopy opening in-flight. Not sure it's linked to any key assignment (have checked all profiles) however I was just doing a mission and the throttles were at 80% and the copy opened. Also happened just in cruise and on then on the ground. Using Saitek X55. Mainly happens on the F-15 and SU27 and since the last update. Any ideas?