Automation bug stereo combined panner

Hello guys,

I’m on Cubase 13 build 13.0.55 from feb 26 2025 and I’ve noticed an automation problem a few days ago.

When I want to automate a stereo combined panner (touch mode) it seems that only the L channel is written or able to be automated. The R channel isn’t moving and stays at the last position where I moved it whereas it is red and seems to write.

I can’t add a video to show you but here is a capture of that track.

Is that a bug of am I missing something ? Didn’t have the problem some days ago.

Thanks in advance !