Lots of weirdness in 4.3

[asciifaceman]

Some of this may be me, but sharing in case others are having issues.

Plugin installs fine, no errors. At first SoftBody2D showed up as a node and I tinkered with it for a bit. Was having lots of issues getting anything to attach to another object without freaking out and turning into an explosion of physics interactions. Then I noticed it stopped displaying regions etc if I hit the debug option. Now I can't find the node in Add Node anymore - even reinstalled the plugin (rm + reinstall). SoftBodyRidigbody2D shows up, but not the Polygon2D derived SoftBody2D

I also notice, while it was working, that I couldn't set a root node to Softbody2D, it defaulted to Polygon2D and lost script functionality.

I've only got speculation right now because I've never seen behavior like this and don't know where to start. I've done plugin dev myself and never got weirdness quite like this before. This is persisting across reloads and complete exit restarts as well. I wonder if something is going wrong in on-enable startup

[Ughuuu]

So, this plugin is formed of 2 gdscripts, thats it. You can look at them.
The physics not behaving, thats, believe it or not, a physics bug, not related to this plugin.
Both of these issues sound like godot issues, nothing i can do on my side.