Flow: Record History loses group rigidity after moving reference(d) curves - Bug?

Rhino Rhino for Windows
1

See image below and attached file. Is this a bug or did I miss out on a setting?

180709%20Flow%20problem
180709 Flow problem.jpg1428×691 93.6 KB
180709 Flow problem.3dm (432.1 KB)

2

This looks buggy to me - thanks for the report.
https://mcneel.myjetbrains.com/youtrack/issue/RH-47247
-Pascal