A good starting point would be to disable all third-party plugins and see if that resolves the issue.
Solved ERROR invalid data after in-house conversion
I'm in the process of migration an old forum to NodeBB.
For such purpose I have written some conversion tools, so far, so good except that whenever I try to edit an "imported" post, I recieve a "ERROR Invalid data".
Obviously I am missing something critical as part of my conversion.
Anyone could give me some hint?
After digging thru the code I finally nailed down my mistake. I was missing the pid within the post record
Glad to hear the issue is resolved Good luck on your new NodeBB forum!!
I was not too complicated but not having any data model made the process longer.
I still have faced an issue with my converted users not been able to view the categories. I have manually addressed the issue by creating a "legacy" group, add the necessary group/priv to my categories and manually adding my users to the legacy group (fortunatly was having no more than 150 legacy users).
I presume it has something to do with group association but haven't been able to figure out what exactly