It sounds like we might need a few more details to help diagnose what might be wrong with your integration setup. I would suggest contacting the team at https://support.atlassian.com/servicedesk/customer/portal/32 and providing any screenshots details you can about what you're trying and what you're expecting. Hopefully they can help you get the the bottom of your issue quickly!
...have mention name FirstnameLastname. Fe.: @MaartenCautreels This certainly helps to know who is being mentioned in a conversation. Imagine your colleague sends the following message...
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