Fivetran Connector - connection_type not getting persisted - pulumi

Question

I'm trying to use the Fivetran API to dynamically create Connectors. One problem I've run into is that when I set connection_type = PrivateLink, it doesn't work.
Specifically, when I try to set connection_type on the Connector itself, I get an error:
error: fivetran:index/connector:Connector resource 'my-connector' has a problem: Computed attribute cannot be set. Examine values at 'Connector.Config.ConnectionType'.
When I set the connection_type on the Destination which the Connectors belong to... nothing happens! I look at the Connectors in the UI and they all have their connection_type set to Direct Connection, even though the Destination is supposed to be set to PrivateLink.
Is there some trick to get this working?
I'm interacting with Fivetran via Pulumi, not direct REST calls. The config for a Connector looks something like this:
destination = Destination(resource_name = destination_name,
opts = resource_options,
group_id = fivetran_group.id,
region = "AWS_US_EAST_1",
service= "big_query",
config = {
"project_id" : "SomeProjectId",
"connection_type": "PrivateLink",
"data_set_location" : "AWS_US_EAST_1"
},
run_setup_tests = False,
time_zone_offset = "-5")
#...
connector = Connector(resource_name = db + "_data_src",
opts = resource_options,
group_id = fivetran_group.id,
service = "postgres",
paused = True,
pause_after_trial = True,
sync_frequency = 60,
destination_schema = {
"prefix": "xyz_" + db.lower()
},
config = {
"host": "very.long.aws.hostname.com",
"port": 5432,
"database": "XYZ_" + db.upper(),
# "connection_type": "PrivateLink",
"user": "someUser",
"password": "somePassword",
"update_method": "XMIN"
})