API tasktypeid 12/13 deploySnapIns not doing anything

[bartfox]

We are on FOG 1.5.10.
Everything from the web ui works great, as expected.
But with the api, all works except the scripting to launch tasktype=12 for All Snapins.
Everything tried from invoke-restmethod to new-fogobject always returns the hostobject with all it’s parameters, but in the webui under active tasks or active snapins tasks, it’s not coming in…

Here an example:
for single snapin:

$body = @{
    "taskTypeID" = "13",
    "deploySnapins" = "20"
} | ConvertTo-Json

for all snapins:

$body = @{
    "taskTypeID" = "12",
    "deploySnapins" = "-1"
} | ConvertTo-Json

then execute:

Invoke-RestMethod -Uri 'http://fogserver/fog/host/418/task' -Method Post -Headers $headers -Body $body

(headers containing system api and user api token…) always returns the host object and it’s configured parameters, but launches nothing…
what am i missing ?

Also am using fogapi powershell module (which is great, thanks a lot for that!)
get-foghost works great, but start-fogsnapins does the same (reporting host parameters, but nothing happens)