Look at the "attachments" section in your screen shot. It gives three rules - who can create attachments, who can delete their own attachments, and who can delete any attachment.
Your account obviously matches the rule for "delete own", as that says "any logged in user", but the rule for any attachment is "people in a role". Are you in that role in the project?
I'm John Allspaw, co-founder of Adaptive Capacity Labs, where we help teams use their incidents to learn and improve. We bring research-driven methods and approaches to drive effective inciden...
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