Strange behavior of Locals & Expression

While debugging, after stepping a few times, both splits of Locals and Expressions show a synchronized tree with the following structure:

• Locals
  • this
  • ...
• Inspector
• Expressions
  • (My Expression)
• Return Value
• Tooltip

Expanding/collapsing in one of the splits affects the other.

Deleting Tooltip from the Expressions split causes a crash.

Screenshot attached.