Jumbled-up block selection highlight

The block selection has gone nuts again :

Hello - is this an actual selection of more than one object or does the highlight/display not correspond to the selection?
If you can isolate a block that shows this problem in a file, it would be helpful to get an example - tech@mcneel.com.

-Pascal

If I click on one instance , it’s normal, but if I click on the other instance, the first one gets highlighted too.
Nuts, I tell you.

Block selection highlights are still completely bezerk in Version 6 SR13 (6.13.19031.5531, 01/31/2019).

I have this repeated. https://mcneel.myjetbrains.com/youtrack/issue/RH-50649