Movement disabled when using a custom bounding box and dragging outside the original bounding box

[StefanLeng]

This is more a request for advice than a bug report, it’s probably me doing something wrong.
I created a module for the GURPS system that changes the bounding box of non-rectangular tokens to account for token rotation.

https://github.com/StefanLeng/gurps-gridless

Without Elevation Ruler, I can drag anywhere in the custom bounding box to initiate movement.

But with Elevation Ruler enabled, I can initiate movement only if I drag in the area where the original bounding box and the changed bounding box overlaps. If I drag in the custom bounding box, but outside the original bounding box, I get a red ruler, and no movement is done after dragging.

Do you know about anything I need to do additionally to get your excellent module working with this custom bounding box?

[StefanLeng]

I figured it out: I have to alter the token.shape to the same shape as the hitArea