In Sketch 66.1 plugin doesn't perform artboards upload using v 9.3 (4284)

[chovko]

When going through the main UI it doesn't perform any action on artboard selection while clicking on Sync Selected, neither Sync All works.

When going through the navigation path, it crashes and Sketch has to restart.
Sketch Version 66.1 (97080)
Marvel v9.3 (4284)

Screen Recording 2020-06-09 at 10.49.38.zip