Converted effects from grandma2

Hello hivemind,

I have an ma2 showfile that I saved as MA3 2.4.2 and then opened in MA3. There is a tilt effect in some of the cues, it is running almost like expected, but the phase and matricks does not seem to work (all lights tilt simultaneously, not in blocks). However, it does not seem to be saved in the cues as a phaser, there is only one step as far as I can see. Where can I access and edit converted ma2 effects?