BUG - Linked Chanels Custom Layer

Hello everyone, i’m new in this forum but I work with the Qu systems a lot.

Today I found a Bug on my Qu32 FW: 1.90 Rev 4537.

I built a custom layer:
-Channel 1: Input 1
-Channel 2: Input 2
-Channel 25: Input 1

Input 1 & 2 are linked. If I move Channel 1 or 25 everything works great. If I move Channel 2 only the fader of Channel 1 moves, too. The fader of Channel 25 doesn’t move. If I move the fader of Channel 25 now, it takes the value from 25 as new value for 1&2… Instant… This could mess up a show…

Can someone confirm this?

Greetings from Germany
Chris