Inspector unresponsive when expanding array with a dictionary value while game running

[GameEndeavor]

Godot version:
v3.2.beta5

OS/device including version:
Windows 10

Issue description:
If you place dictionaries into an array, then it can be unresponsive to open and close the dictionary in the inspector while the game is running.
https://gyazo.com/939fb3800e04dafccdfbea764dfc31cc

Steps to reproduce:
Create an array with a dictionary in it
Run game
Select Remote scene tree
Navigate to array in inspector
Click to expand the dictionary value

Minimal reproduction project:
dict-array-bug.zip

[adabru]

Tried it out on 3.2.2.stable and happens for me too on Linux Arch. Maybe its related to #25375 ?