Stuck loading tables with varbinary?

[elpardua]

Hi Jason, first of all, amazing job you did with this project. I left programming like 20 years ago, and phreeze made my life easier doing an app to control kea dhcp and radius daemons. I'm having a problem with two tables of kea, when they were empty the lists appeared ok (at least column names). Now that kea populates them with values, when i click on that table, the rendering gets stuck and all i got is the table name and the blue loading bar running forever. I've tried turning logging on on my php.ini, but i can't see any error. I know phreeze doesn't know how to represent a value differently than in the way it's stored. Can anyone tell me where to look for?
This is the problematic table:
mysql> describe lease4;
+----------------+------------------+------+-----+-------------------+-----------------------------+
| Field | Type | Null | Key | Default | Extra |
+----------------+------------------+------+-----+-------------------+-----------------------------+
| address | int(10) unsigned | NO | PRI | NULL | |
| hwaddr | varbinary(20) | YES | MUL | NULL | |
| client_id | varbinary(128) | YES | MUL | NULL | |
| valid_lifetime | int(10) unsigned | YES | | NULL | |
| expire | timestamp | NO | | CURRENT_TIMESTAMP | on update CURRENT_TIMESTAMP |
| subnet_id | int(10) unsigned | YES | | NULL | |
| fqdn_fwd | tinyint(1) | YES | | NULL | |
| fqdn_rev | tinyint(1) | YES | | NULL | |
| hostname | varchar(255) | YES | | NULL | |
| state | int(10) unsigned | YES | MUL | 0 | |
+----------------+------------------+------+-----+-------------------+-----------------------------+
10 rows in set (0.01 sec)

mysql> select * from lease4 limit 1;
+------------+--------+-----------+----------------+---------------------+-----------+----------+----------+----------------------------+-------+
| address | hwaddr | client_id | valid_lifetime | expire | subnet_id | fqdn_fwd | fqdn_rev | hostname | state |
+------------+--------+-----------+----------------+---------------------+-----------+----------+----------+----------------------------+-------+
| 3036741892 | �v��W | ��v��W | 3600 | 2018-04-13 16:10:04 | 1 | 1 | 1 | atadeviced4:76:ea:d0:0e:56 | 0 |
+------------+--------+-----------+----------------+---------------------+-----------+----------+----------+----------------------------+-------+
1 row in set (0.00 sec)

My guess is that it has to do something with the encoding and php, but as i said, i can't get any error messages.
According to kea documentation, i must run the HEX function in the hwaddr field, and INET_NTOA in the address field to visualize properly the information.

Thanks in advance.
Pablo
P.S: Sorry for my english, i'm from Argentina.