UBB.threads PHP Forum Software Community Forums UBB.threads 7 Bug Reports Error on Insert into POSTS

I thought this was resolved, but I am still seeing errors in the mysql log when people use an asterisks.
INSERT INTO ubbt_POSTS...
Script: /home/dbs/ubbthreads/frame/scripts/addpost.inc.php - Line: 491
Incorrect string value: '\x92

UPDATE ubbt_FORUMS...
Script: /home/dbs/ubbthreads/frame/libs/content_rebuild.inc.php - Line: 418
Incorrect string value: '\x92

Here are my database char settings
SHOW VARIABLES WHERE Variable_name LIKE 'character\_set\_%' OR Variable_n
ame LIKE 'collation%';
+--------------------------+--------------------+
| Variable_name | Value |
+--------------------------+--------------------+
| character_set_client | utf8mb4 |
| character_set_connection | utf8mb4 |
| character_set_database | utf8mb4 |
| character_set_filesystem | binary |
| character_set_results | utf8mb4 |
| character_set_server | utf8mb4 |
| character_set_system | utf8 |
| collation_connection | utf8mb4_general_ci |
| collation_database | utf8mb4_general_ci |
| collation_server | utf8mb4_general_ci |
+--------------------------+--------------------+
10 rows in set (0.00 sec)

In my php.info I am seeing default_charset UTF-8 UTF-8
Does this need to be updated?

Any ideas?