Open “groups/groups-loop.php
” in the theme folder and find line 41. Change the number in the code shown below to how many characters you want to show from the description.
echo bp_create_excerpt( $group->description, 25 )
This happened because they changed the parameter in BP 1.5 for the excerpt length. The number previously set the “number of words” and now it’s “number of characters”. I don’t know why.