Problem with Pinjoint2D in Editor

Godot Version

4.2.1.stable

Question

Hi!
I’m fairly new to godot and try to create a simple scene with a Pinjoint2D Node. But when I link two Rigidbody2D nodes to the Pinjoint2D, they are shown correctly in the inspector (the yellow sign remembering to connect two nodes is gone):
image

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Attempt to disconnect a nonexistent connection from ‘RigidBody2D:<RigidBody2D#1703575351952>’. Signal: ‘tree_exiting’, callable: ‘Joint2D::_body_exit_tree’.

If I run the project there is no joint, the objects are just falling down.
Strange: if I remove the links with the inspector, there’s an error message:

Is this a known issue?
Thanks in advance,
Dirk