Drag&Drop in Vue.js, why does the elementFromPoint method work incorrectly?

Question

JavaScript

Hey! Reinventing the wheel with Drag & Drop (for experience and all that, I know about ready-made libraries).

I am doing this example .

I made some changes to the code, but when copying them into a regular html file, everything works out as it should. However, when running this code in Vue, the code on line 40 does not work correctly - despite explicitly setting the dragged element's hidden = true property, the draggable element is still returned in elemBelow . I spent already half a day digging into this issue, but the successful launch in a separate html file completely confused me. I have no idea what exactly in vue can be a hindrance.

In the near future I will try to issue a codepen with a reproduction of the problem.

Upd:
Here is a good example.The value of the variable elemBelow is displayed in the console