Universal studio not loading default players

Hello,

I'm using version 11.3.0 and I cannot edit / duplicate existing players from the Universal Studio flash editor.
The HTML5 Version is 2.37.3
There is an Angular JS runtime error:

Pasted image1738x213 22.5 KB

and no errors from kaltlog.

Would anyone know why / how this could happen?

Cheers,

Flav