Atlassian Companion won't open MS Office when editing a file in Confluence on mac air (m4, Tahoe 26.2)
You are running on Data Center right, as Cloud doesn't support companion app.
What version are you running of the companion app?
I see 2.4.7 had issues with Tahoe, you could try 2.4.8 or 2.5.0
If you already running one of these versions, and the issue is there.
Raise an issue with Atlassian Support
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