NR4: Flow Properties missing (double-click on tab)

[SynoUser-NL]

Problem/Motivation

When trying to edit the name of one of my Flow tabs in NR4 in my Home Assistant installation, a properties section is missing:

Whereas in a local installation of NR4 this is the same is in the previous version (3.10).

Expected behavior

The properties of the Flow Edit should be visible, which allows the name change.

Steps to reproduce

In the latest version of the add-on NodeRED for HA, version 4, double click on a Flow (tab) name. The properties of the Flow do not display.

Proposed changes

Well.. make it work again. :)