Sorting doesn*t seem to work properly

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#1

Hi!

Is it just me or does sorting doesn*t work properly?

Under https://discourse-test.omnigroup.com/category/omnifocus/omnifocus-2-for-mac

I sorted after Activity, but the Topic

https://discourse-test.omnigroup.com/t/bonjour-sync-not-in-of-2-a-correct-use-self-hosted-webdav-instead/

with its last reply of 5d doesn’t show up on the right place within the 5d Topics.
Why? Or do I understand “Activity” wrong?

Greetings from germany
Matthias B.