Can't delete field collection items if there are too many

I posted this as an answer on this thread but since it's not about the same version I thought it would be best to make a new one.

On a node with a lot of items (approximately 30) it's impossible to remove the elements positioned at the top of the list. Nothing happens and it returns an AJAX error in the console. The elements at the bottom of the list can be removed though.

Drupal.AjaxError {message: "↵Une erreur HTTP AJAX s'est produite.↵Code de stat…StatusText: Internal Server Error↵ResponseText : ", name: "AjaxError"}
message
:
"↵Une erreur HTTP AJAX s'est produite.↵Code de statut HTTP : 500↵Informations de débogage ci-dessous.↵Chemin : /node/7/edit?element_parents=field_question_reponse/31&destination=/admin/content&ajax_form=1↵StatusText: Internal Server Error↵ResponseText : "
name
:
"AjaxError"