A small error in the display of the Timeline with the Indicator elements

[Hirn]

Hello dear developers.
If I scroll the Timeline that has Indicator elements down to the very end, an error appears that can be seen in the second screenshot.

Version v12.1p_2020-05-01 (2020-05-01)

[Isomorphic]

What are you pointing out as an error here?

[Hirn]

by error, I mean the offset of the drawing lines in the table rows.
But if it was meant to be that way, then all is well.