diagrams aren't redrawn on restart

[basbebe]

When I close a draw.io file (draw.io desktop 14.5.1, Mac OS 11.3.1) and reopen it, the diagram stays empty (empty white frame).

On doubleclick on the diagram, where the preview should be is just the diagram code.

When I click "apply", I get this error:

Uncaught TypeError: n.updateImage is not a function

[nopeslide]

@basbebe
Thanks for the issue and sorry for the late response, my mail server is currently down.
Will take a look, when I have the time.