Ticket #7590: 7590.patch

src/bp-core/bp-core-template.php

@@ -1017 +1017 @@
                         $is_word_boundary = ' ' === $truncate[ $pos ];
                         if ( ! $is_word_boundary && isset( $truncate_tags[ $pos - 1 ] ) ) {
                                 $preceding_tag    = $truncate_tags[ $pos - 1 ];
-                                if ( ' ' === $truncate[ $preceding_tag['start'] - 1 ] ) {
+                                if ( isset( $preceding_tag['start'] ) && ' ' === $truncate[ $preceding_tag['start'] - 1 ] ) {
                                         $is_word_boundary = true;
                                         break;
                                 }