plugin conflict after update

Hi,

I upgraded your plugin from v3.1.17 to the current version 3.3.1, but this seems to be causing a conflict with another plugin, Events Made Easy (https://www.ads-software.com/plugins/events-made-easy/).

When I am logged in as Editor (user role) and try to place or upload a media file in the Events Made Easy editor window (tinyMCE), I get an error message: ‘Sorry, you are not allowed to attach files to this post” and nothing happens.
But when I’m logged in as Admin everything works just fine.

The weird thing is that this only happens with Events Made Easy. As an Editor I can still attach media to other pages and posts, even when using Classic Editor (aka tinyMCE).

Since this problem is obviously caused by a recent WPUF update (reinstalling older version solves the problem) I’m wondering what changed. Could it be a new setting I’m missing? Or have Editor permissions changed, causing conflicts with other plugins?

Hope you can help, thanks.