"The specifier “easymde” was a bare specifier, but was not remapped to anything"

Hi, I have two projects that both import EasyMDE (v2.18.0) with a simple:

`import EasyMDE from 'easymde'`

One works perfectly, the other throws this in the console:

`The specifier “easymde” was a bare specifier, but was not remapped to anything`

I've spent the day on this, and cannot find a reason for this error.

Any idea of where I should investigate?