I am also interested in this topic.
It is very important to be able to deduct automatically Featured images (thumbnail) for publication and to show the text to it. Now BP captures first picture in the publication which is unfortunate.
I hope to be able to add other versions of BP that could be true ..
Now I hope someone can help!
After many tests I found that if you have not previously installed the old version BP 1.2.10 Forum groups will not work ..
With me not working because I installed 1.5.5 on a clean database and forums so groups do not work. But when I delete the database and installed 1.2.10 and Forum work groups. Then upgraded to 1.5.5 and forum groups continue to work … I think something is missing to be added to the database when you first install it BP and the latest versions from 1.5 up!
I am not a programmer and I can not say exactly what is omitted is added to the database but I hope to investigate this and fix the problem. Many people have this problem … write “There was an error when creating the topic” google and look at yourself.
For all who have this problem the solution is very simple …
1. You must install the 1.2.10 version of the BP .. To create a forum topic group and see if everything is okay.
2. To upgrade to BP 1.5.5