Not able to bulk upload files on Attachments Macro

Summary

Not able to upload multiple files on File List Blueprint, the documentation is also not clear if this functionality is even available.

Steps to replicate

1. Go to a page with the Attachments Macro in it;
2. Try to upload multiple files by using drag & drop;

Expected results

All files would be uploaded and added to the list.

Actual results

Only one of the files gets uploaded

Notes

This also happens with Filelist Blueprints.

Workaround

1. Click on the ... >> Attachments of the affected page.
2. Upload multiple files by drag & dropping on the bottom right space to it or by browsing these files on the Attach Files section.

Alternative:

1. Drag and drop onto the page outside of the drop zone