Spotlights disappear with linear lighting in GameStudio editor view when enabling/disabling them

[phr00t]

When having multiple lights in a scene, in GameStudio, and with Linear Light Attenuation enabled, spotlights can spontaneously stop working when switching other lights on and off. Any thumbnails or previews of the scene (like a prefab thumbnail) continue to show the spotlights correctly. I have not noticed this problem outside of GameStudio, like in a running project where lights seem to work fine. Lights also seem to work fine with linear lighting attenuation disabled (which is the default setting). Switching light attenuation on/off or restarting GameStudio seems to resolve it, at least temporarily.