When adjusting the scroll bar in the Visual Logger window, the editor freezes up. There is no callstack provided in the logs. The only way to close the editor at that point is to close it through the Task Manager. This only occurs when a bvlog file is not loaded.
Tested in //UE4/Release-4.25 @ CL 14469661 and the same behavior occurred so not marking as a Regression.
Editor freezes with no crash reporter
Editor does not freeze when adjusting the timeline
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-116311 in the post.