Genesyscloud_analytics_dashboard 400 on AU-1 BYOC terraform apply

General Discussion
1

does anyone know why dashboard creation fails with 400 bad request on our byoc environment?

env: au-1 byoc
provider: 2.5.1
tf: 1.6.0
resource: genesyscloud_analytics_dashboard

apply fails immediately. api returns 400.

resource "genesyscloud_analytics_dashboard" "ops_metrics" {
 name = "ops_metrics_dashboard"
 description = "automated ops metrics"
 type = "analytics"

 widget {
 name = "call_volume"
 type = "chart"
 position {
 col = 0
 row = 0
 size_col = 6
 size_row = 4
 }
 config = jsonencode({
 report_id = genesyscloud_analytics_report.call_vol.id
 })
 }
}

report exists and is valid. checked via cli. report id is correct. tried removing widget config. still 400. tried different names. same error.

error log:
Error creating analytics dashboard: 400 Bad Request {"errors":[{"message":"Invalid request body","code":"bad.request"}]}

anyone seen this on byoc? seems like schema mismatch or api bug. manual creation in ui works fine. terraform fails. need to fix this for pipeline.