Hello guys,
i have a kamilio with a dispatcher list in db like 

+------------------------------------------------+----------------------------------------------+----------------------------+
| id   | setid | destination         | flags | priority | attrs                        | description   | register_datetime   |
+------+-------+---------------------+-------+----------+------------------------------+---------------+---------------------+
| 3239 |   430 | sip:gateway-08:5080 |     0 |       10 | duid=gateway-08;weight=50    | gateway-08    | 2023-03-21 00:19:44 |
| 3246 |   430 | sip:gateway-11:5080 |     0 |       10 | duid=gateway-11;weight=50    | gateway-11    | 2023-05-15 23:00:28 |
| 3247 |   430 | sip:gateway-12:5080 |     0 |       10 | duid=gateway-12;weight=50    | gateway-12    | 2023-05-15 23:06:57 |
| 3249 |   430 | sip:gateway-14:5080 |     0 |       10 | duid=gateway-14;weight=50    | gateway-14    | 2023-05-15 23:24:44 |
| 3276 |   430 | sip:gateway-15:5080 |     0 |       10 | duid=gateway-15;weight=50    | gateway-15    | 2024-05-01 19:43:19 |
| 3277 |   430 | sip:gateway-16:5080 |     0 |       10 | duid=gateway-16;weight=50    | gateway-16    | 2024-05-01 19:51:16 |
| 3278 |   430 | sip:gateway-1:5080  |     0 |       10 | duid=gateway-17;weight=50    | gateway-17    | 2024-05-01 19:58:13 |
| 3279 |   430 | sip:gateway-17:5080 |     0 |       10 | duid=gateway-18;weight=50    | gateway-18    | 2024-05-01 20:06:44 |
| 3280 |   430 | sip:gateway-3:5080  |     0 |       10 | duid=gateway-19;weight=50    | gateway-19    | 2024-05-01 20:14:50 |
| 3281 |   430 | sip:gateway-2:5080  |     0 |       10 | duid=gateway-20;weight=50    | gateway-20    | 2024-05-01 20:23:25 |
+------+-------+---------------------+-------+----------+------------------------------+---------------+---------------------+

and i'm dispatching with 

    if(!ds_select_dst("$var(dispatcher_id)", "10"))
    {
        xlog("[DISPATCH]: ds_select_dst FAILED!'\n");
        send_reply("404", "No destination");
        exit;
    }

still kamailio isn't distributing at all but for some reason is favoring high-description gateways:

kamctl rpc dlg.list

      5 gateway-20:5080;transport=udp"
      2 gateway-19:5080;transport=udp"

it's forwarding calls mostly to gateway-20, gateway-19, gateway-18, gateway-17... in descending order...

Why is kamailio doing that? 
i'd expected it to distribute to all based on the call load on each gateway.

Thanks all!

Regards,

David Villasmil