Cannot add diagram to Issue with Draw.io

[Sverre Moe]

On Jira 6.1, installed Draw.io plugin version 1.2.2.

Trying to add a diagram to an issue and are getting the following permission error:

Insufficient access rights to perform this action on Diagramly diagram

[Sverre Moe · Accepted solution]

Boris Jockov had the solution. I cannot set solved on a comment.

The user was missing Create Attachment permission.

[Boris]

Does your user have Create Attachment permission?