There is a bug in 6.11.7 in collection > features > comments "Threaded Comments". If activated there is a mess caused in displaying meta comments and further causes that the sidebar disappears in single post view for logged in users.

This bug was identified by https://forums.b2evolution.net/meta-comments-bug-causes-mess#c119820.

Would be great to have a fix in the last version of 6.x for all those who won't or can't because of requirements not upgrade to 7x

Thanks in advance