Runtime error regarding undefined imports on Buttplug versions 1.0.15 - 1.0.17 when using Webpack 5

[amydevs]

Describe the bug
All the imports from "buttplug" are undefined when loading the library with Webpack 5 without transpiling dependencies. An example of the error message shown:
TypeError: buttplug__WEBPACK_IMPORTED_MODULE_4__.buttplugInit is not a function
Upon console.log'ing any import from "buttplug", it is undefined.
This behavior has been exhibited in freshly-created Vue 3 / and Next.js projects.

Expected behavior
Importing from "buttplug" should be defined.

Actual behavior
Error: TypeError: buttplug__WEBPACK_IMPORTED_MODULE_4__.buttplugInit is not a function
None of the imports are defined.

Additional context
This issue happens from "buttplug" version 1.0.15 onwards.
The same behaviour happens also when importing through these methods:

const { buttplugInit } = await import('buttplug');
import * as Buttplug from "buttplug";

An example of this happening can be seen here: https://github.com/jy1263/buzzy-vue/tree/latest-buttplug
It's interesting that window.Buttplug is defined with everything in it though.