Copy plus show loses effect grouping

Hi, I have a touring show file where I use "copy to plus show" in patch when going into a new venue.
I stored several effects with and without an offset in groups and stored them in cues.
If I copy the channels in patch "plus show" (because i want to transfer them to the fixtures in the venue) I lose the offset grouping in the cues. The effects with no offset grouping are working as expected. To give an example: Group 1 (consisting of 8 channels) offset random with a sine dim effect. After copying the 8 channels in the patch, the effect runs from channel 1 - 8.
Am I missing something? Is there another workaround for?
Thanks in advance!
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