2.3.6

$ php cmd.php xf-addon:build-release EWR/Discord Performing add-on export. Exporting data for [8WR] Discord Integration to /src/addons/EWR/Discord/_data. 27/27 [============================] 100% Written successfully. Attempting to validate addon.json file... JSON file validates successfully...

Attachments are not getting uploaded on xf 2.3.6. Tried it on multiple browsers, from different accounts, different attachment extensions, disabled all add-ons and it just doesn't upload properly to display the thumbnail and get attached to the post. Seeing no errors whatsoever to investigate...