I have upgraded from 3.6.2 to 4.1.1 and all existing group discussions are no longer visible in the group discussion section. I am aware that the way discussions work changed in v4 and I have set up a new node in the 'Archive group forums to node' setting so new groups and discussions work fine, it's just existing ones that no longer appear in the group discussions tab. They do appear as regular forum nodes in the main forum if I allow them to be displayed in the node list so the data is there.
I am seeing this error in the logs a few times, has this got anything to do with it? It might be something else.

Note I have also upgraded XenForo to 2.3.7.
Any help is appreciated!
I am seeing this error in the logs a few times, has this got anything to do with it? It might be something else.

Note I have also upgraded XenForo to 2.3.7.
Any help is appreciated!