The Kunena team has announce the arrival of Kunena 7.0.4 [K 7.0.4] in stable which is now available for download as a native Joomla extension for J! 5.4.x/6.0.x. This version addresses most of the issues that were discovered in K 6.2 / K 6.3 / K 6.4 and issues discovered during the last development stages of K 7.0
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Question
More than 150 Queries by Recent Topic (bis)
I still think that 18 queries in one module is a lot, but yes, the main issue seems to relate to CB integration. Still if I enable CB integration in my test site, I get only few extra queries. So maybe the issue is related to CB but not CB itself..
Have you integrated UddeIM to CB? Maybe that's the issue? Change Private messaging integration in Kunena to None and see what happens.
The truth is that we have seen this happening for 2 users -- most of the CB users are happy and do not have this issue, including JoomlaPolis, which is running Kunena. So tracking down what is happening is like hunting shadows.
We need to find out a way how to reproduce this issue. What is needed to get this issue? Honestly I have no idea where to start from.. Except that there was a bug in K1.6 where you got many extra queries IF you had no moderators in your site.