Hitting a very weird issue trying to set up a BackendBucket:

Error 400: Invalid value for field 'resource.cdnPolicy.defaultTtl': '3600'. default_ttl cannot be specified with USE_ORIGIN_HEADERS cache_mode., invalid

What's interesting is that I'm not specifying a

DefaultTtl

(C#). Yet for some reason, Pulumi must be coming up with one and providing it to the provider?