Remote API: sites_web_domain_update does not persist directive_snippets_id

ISPConfig 3.3.1p1 — NGINX — Debian 13 Stable

Hello,

I'm encountering an issue whereby I'm unable to change the "Web server config" Directive Snippet from the API

If I do it manually in the Control Panel, then ('directive_snippets_id' => '0') changes to ('directive_snippets_id' => '1') when I query the API.

When I try to set it using the API I get the following:

==================== REQUEST: sites_web_domain_update ====================
URL:
https://127.0.0.1:8000/remote/json.php?sites_web_domain_update

Payload:
{
"session_id": "REDACTED",
"client_id": 1,
"primary_id": 1,
"params": {
"directive_snippets_id": 1
}
}

==================== DECODED RESPONSE: sites_web_domain_update ====================
array (
'code' => 'ok',
'message' => '',
'response' => 0,
)


It does not change, I tested with all Functions permissions enabled for the API/Remote user.

Any ideas?

Thanks!