brand new bug! ??

I have a bunch of volume automation on a channel, and now, for some reason, i cannot highlight just one automation point without them all becoming highlighted.

Anyone else ever encountered this? I’ve been using Cubase for 15 years and have never seen this before. Is there some channel setting or preference that can impact this?

At any rate I solved the problem by creating a new channel, moving the audio events there and copying the automation over.