Resolve 14 Studio - Collaboration mode - Grading issue

We have a grading issue since Resolve 14 beta under collaboration mode, even though it has officially released, the issue haven't been solved yet.

In the color tab, when we play frame by frame and cross the cut (on keyboard or panel), the node from the first clip will be dead. No matter how we adjust the primary color wheel, it doesn't respond. However, this situation doesn't happen on single user mode.

Wondering anybody has this same situation?