ColorTrace from Timeline goes flat

I'm wondering if anyone else has had this issue.
Anytime I colortrace, the timeline I colortrace from goes flat, all the nodes stay, just looks as if they're all bypassed. The timeline I colortrace to gets all the nodes and work, and looks correct. I have to restart Resolve in order to fix the original timeline. Not a huge issue, but obviously a weird bug.
Windows - happened in all version of r16, still happens in r17.
Anytime I colortrace, the timeline I colortrace from goes flat, all the nodes stay, just looks as if they're all bypassed. The timeline I colortrace to gets all the nodes and work, and looks correct. I have to restart Resolve in order to fix the original timeline. Not a huge issue, but obviously a weird bug.
Windows - happened in all version of r16, still happens in r17.