Cub 11.5 Disable / Enable Tracks Lost Sidehchain Configuration


I have setup up some beautiful side chains for mixing. I deactivate both tracks involved and activate them again. All side chain Configurations are lost (win 10 Cubase 11.5 & Nuendo)
I think everybody has this problem :frowning: Is there a can number or can somebody create one for this bug ?
Thanks, Nostaller